Description
General Chemistry 11th Edition by Darrell Ebbing – Test Bank
Sample Questions
Instant Download With Answers
| Chapter_02_Atoms_Molecules_and_Ions
1. Which of the following is/are postulates of Dalton’s atomic theory?
| |
1. |
Atoms combine in fixed ratios of whole numbers. |
| |
2. |
Atoms of each element have different properties. |
| |
3. |
Elements occur as solids, liquids, or gases. |
| |
a. |
1 only |
| |
b. |
2 only |
| |
c. |
3 only |
| |
d. |
1 and 2 |
| |
e. |
1, 2, and 3 |
| ANSWER: |
d |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
2.1 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.24 – List the postulates of atomic theory. |
| TOPICS: |
early atomic theory
atomic theory of matter |
|
2. Which of the following statements best describes the particulate representation depicted by the picture?
| |
a. |
The figure is a representation of a gas made up of a single element. |
| |
b. |
The figure is a representation of a molecular solid. |
| |
c. |
The figure is a representation of a liquid mixture of two elements. |
| |
d. |
The figure is a representation of a liquid mixture of two compounds. |
| |
e. |
The figure is a representation of a gas of a compound. |
| ANSWER: |
a |
| POINTS: |
1 |
| DIFFICULTY: |
moderate |
| REFERENCES: |
2.1 |
| HAS VARIABLES: |
True |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.25 – Define element, compound, and chemical reaction in the context of these postulates. |
| TOPICS: |
early atomic theory
atomic theory of matter |
|
3. Which of the following is not a correct name–symbol combination?
| |
a. |
gallium, Ga |
| |
b. |
iron, Fe |
| |
c. |
nitrogen, N |
| |
d. |
argon, Ar |
| |
e. |
sodium, He |
| ANSWER: |
e |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
2.1 |
| HAS VARIABLES: |
True |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.26 – Recognize the atomic symbols of the elements. |
| TOPICS: |
early atomic theory
atomic theory of matter |
|
4. The symbol for tin is
| |
a. |
T. |
| |
b. |
Tn. |
| |
c. |
Si. |
| |
d. |
Ti. |
| |
e. |
Sn. |
| ANSWER: |
e |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
2.1 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.26 – Recognize the atomic symbols of the elements. |
| TOPICS: |
early atomic theory
atomic theory of matter |
| KEYWORDS: |
atomic symbol |
| OTHER: |
general chemistry |
|
5. What is the symbol for the element phosphorus?
| |
a. |
Po |
| |
b. |
P |
| |
c. |
Pt |
| |
d. |
K |
| |
e. |
Pr |
| ANSWER: |
b |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
2.1 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.26 – Recognize the atomic symbols of the elements. |
| TOPICS: |
early atomic theory
atomic theory of matter |
| KEYWORDS: |
atomic symbol |
| OTHER: |
general chemistry |
|
6. Which one of the following lists gives the correct symbols for the elements phosphorus, potassium, silver, chlorine, and sulfur?
| |
a. |
P, Po, Ag, Cl, S |
| |
b. |
K, Ag, Po, Cl, S |
| |
c. |
P, K, Ag, Cl, S |
| |
d. |
Ph, K, Ag, S, Cl |
| |
e. |
Ph, Po, Ag, Cl, S |
| ANSWER: |
c |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
2.1 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.26 – Recognize the atomic symbols of the elements. |
| TOPICS: |
early atomic theory
atomic theory of matter |
| KEYWORDS: |
atomic symbol |
| OTHER: |
general chemistry |
|
7. Which of the following lists gives the atomic symbols for potassium, magnesium, beryllium, and sodium?
| |
a. |
Po, Mn, Br, Na |
| |
b. |
P, Mn, Be, Se |
| |
c. |
K, Mg, Be, Na |
| |
d. |
Pt, Mg, Be, Sc |
| |
e. |
K, Mn, Br, Na |
| ANSWER: |
c |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
2.1 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.26 – Recognize the atomic symbols of the elements. |
| TOPICS: |
early atomic theory
atomic theory of matter |
| KEYWORDS: |
atomic symbol |
| OTHER: |
general chemistry |
|
8. The names of the elements whose symbols are Si, P, Mn, and S are, respectively,
| |
a. |
silicon, phosphorus, manganese, and sulfur. |
| |
b. |
silicon, potassium, magnesium, and sulfur. |
| |
c. |
silver, phosphorus, magnesium, and sodium. |
| |
d. |
silver, potassium, manganese, and sodium. |
| |
e. |
silicon, potassium, manganese, and sulfur. |
| ANSWER: |
a |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
2.1 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.26 – Recognize the atomic symbols of the elements. |
| TOPICS: |
early atomic theory
atomic theory of matter |
| KEYWORDS: |
atomic symbol |
| OTHER: |
general chemistry |
|
9. Which of the following is the atomic symbol for the element cobalt?
| |
a. |
CO |
| |
b. |
Co |
| |
c. |
C |
| |
d. |
co |
| |
e. |
All of the above |
| ANSWER: |
b |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
2.1 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.26 – Recognize the atomic symbols of the elements. |
| TOPICS: |
early atomic theory
atomic theory of matter |
| KEYWORDS: |
atomic symbol |
| OTHER: |
general chemistry |
|
10. A series of silicon–hydrogen compounds with the general formula SinH2n+2 can be represented by the known compounds SiH4, Si2H6, and Si3H8. This best illustrates the law of
| |
a. |
multiple proportions. |
| |
b. |
conservation of charge. |
| |
c. |
definite composition. |
| |
d. |
conservation of mass. |
| |
e. |
conservation of atoms. |
| ANSWER: |
a |
| POINTS: |
1 |
| DIFFICULTY: |
moderate |
| REFERENCES: |
2.1 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.27 – Explain the significance of the law of multiple proportions. |
| TOPICS: |
early atomic theory
atomic theory of matter |
| KEYWORDS: |
Dalton’s atomic theory |
| OTHER: |
general chemistry |
|
11. According to the law of multiple proportions:
| |
a. |
the total mass is the same after a chemical change as before the change. |
| |
b. |
it is not possible for the same two elements to form more than one compound. |
| |
c. |
the ratio of the masses of the elements in a compound is always the same. |
| |
d. |
if the same two elements form two different compounds, they do so in the same ratio. |
| |
e. |
none of these |
| ANSWER: |
e |
| POINTS: |
1 |
| DIFFICULTY: |
moderate |
| REFERENCES: |
2.1 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.27 – Explain the significance of the law of multiple proportions. |
| TOPICS: |
general concepts
matter |
| KEYWORDS: |
compound |
| OTHER: |
general chemistry |
|
12. Which of the following pairs of compounds can be used to illustrate the law of multiple proportions?
| |
a. |
H2O and HCl |
| |
b. |
NO and NO2 |
| |
c. |
NH4 and NH4Cl |
| |
d. |
ZnO2 and ZnCl2 |
| |
e. |
CH4 and CO2 |
| ANSWER: |
b |
| POINTS: |
1 |
| DIFFICULTY: |
moderate |
| REFERENCES: |
2.1 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.27 – Explain the significance of the law of multiple proportions. |
| TOPICS: |
general concepts
matter |
| KEYWORDS: |
compound |
| OTHER: |
general chemistry |
|
13. Cathode rays are
| |
a. |
anions. |
| |
b. |
protons. |
| |
c. |
cations. |
| |
d. |
positrons. |
| |
e. |
electrons. |
| ANSWER: |
e |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
2.2 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.28 – Describe Thomson’s experiment in which he discovered the electron. |
| TOPICS: |
early atomic theory
atomic theory of matter |
| KEYWORDS: |
discovery of electron | structure of the atom |
| OTHER: |
general chemistry |
|
14. A subatomic particle is
| |
a. |
a piece of an atom. |
| |
b. |
only found in the nucleus of an atom. |
| |
c. |
always positively charged. |
| |
d. |
larger than the nucleus of an atom. |
| |
e. |
always negatively charged. |
| ANSWER: |
a |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
2.1
2.2 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.29 – Describe Rutherford’s nuclear model and the makeup of the nucleus. |
| TOPICS: |
early atomic theory
atomic theory of matter |
|
15. Experiments were carried out in which a beam of cathode rays was first bent by a magnetic field and then bent back by an electrostatic field until the beam hit the screen exactly where it had been hitting before the fields were applied. This experiment permitted the direct measurement of
| |
a. |
the ratio of mass to charge of an electron. |
| |
b. |
the charge on the nucleus of an atom. |
| |
c. |
the charge on the electron. |
| |
d. |
the mass of the atom. |
| |
e. |
the mass of the electron. |
| ANSWER: |
a |
| POINTS: |
1 |
| DIFFICULTY: |
moderate |
| REFERENCES: |
2.2 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.28 – Describe Thomson’s experiment in which he discovered the electron. |
| TOPICS: |
early atomic theory
atomic theory of matter |
| KEYWORDS: |
discovery of electron | structure of the atom |
| OTHER: |
general chemistry |
|
16. Who discovered the electron?
| |
a. |
Bohr |
| |
b. |
de Broglie |
| |
c. |
Rutherford |
| |
d. |
Heisenberg |
| |
e. |
Thomson |
| ANSWER: |
e |
| POINTS: |
1 |
| DIFFICULTY: |
moderate |
| REFERENCES: |
2.2 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.28 – Describe Thomson’s experiment in which he discovered the electron. |
| TOPICS: |
early atomic theory
atomic theory of matter |
| KEYWORDS: |
discovery of electron | structure of the atom |
| OTHER: |
general chemistry |
|
17. Which of the following conclusions regarding Rutherford’s gold foil experiment is not consistent with the observations?
| |
a. |
The nucleus occupies only a small portion of the space of an atom. |
| |
b. |
Most alpha particles travel straight through the gold foil. |
| |
c. |
The nucleus occupies a large amount of the atom space. |
| |
d. |
The nucleus, like the alpha particles used to bombard the gold foil, is positively charged. |
| |
e. |
Wide angle deflections result from a collision of an alpha particle and a gold atom nucleus. |
| ANSWER: |
c |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
2.2 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.30 – Describe Rutherford’s experiment that led to the nuclear model of the atom. |
| TOPICS: |
atomic theory of matter
early atomic theory |
|
18. Who discovered the nucleus of an atom?
| |
a. |
Thomson |
| |
b. |
de Broglie |
| |
c. |
Rutherford |
| |
d. |
Bohr |
| |
e. |
Heisenberg |
| ANSWER: |
c |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
2.2 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.30 – Describe Rutherford’s experiment that led to the nuclear model of the atom. |
| TOPICS: |
early atomic theory
atomic theory of matter |
| KEYWORDS: |
nuclear model of atom | structure of the atom |
| OTHER: |
general chemistry |
|
19. If the Thomson model of the atom had been correct, Rutherford would have observed
| |
a. |
alpha particles bouncing off the foil. |
| |
b. |
alpha particles going through the foil with little or no deflection. |
| |
c. |
alpha particles greatly deflected by the metal foil. |
| |
d. |
positive particles formed in the foil. |
| |
e. |
None of the above observations is consistent with the Thomson model of the atom. |
| ANSWER: |
b |
| POINTS: |
1 |
| DIFFICULTY: |
moderate |
| REFERENCES: |
2.2 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.30 – Describe Rutherford’s experiment that led to the nuclear model of the atom. |
| TOPICS: |
early atomic theory
atomic theory of matter |
| KEYWORDS: |
nuclear model of atom | structure of the atom |
| OTHER: |
general chemistry |
|
20. The nucleus of a 191Ir nuclide contains
| |
a. |
191 neutrons and 268 electrons. |
| |
b. |
77 protons and 191 neutrons. |
| |
c. |
191 protons and 114 electrons. |
| |
d. |
191 protons, 77 neutrons, and 191 electrons. |
| |
e. |
77 protons and 114 neutrons. |
| ANSWER: |
e |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
2.3 |
| HAS VARIABLES: |
True |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.31 – Define atomic number, mass number, and nuclide. |
| TOPICS: |
early atomic theory
atomic theory of matter |
| KEYWORDS: |
atomic symbol |
| OTHER: |
general chemistry |
|
21. If two different nuclides have the same atomic number, it must mean that
| |
a. |
they have the same atomic mass. |
| |
b. |
they have the same mass number. |
| |
c. |
they have the same number of protons. |
| |
d. |
they have the same number of electrons. |
| |
e. |
they have the same number of neutrons. |
| ANSWER: |
c |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
2.3 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.31 – Define atomic number, mass number, and nuclide. |
| TOPICS: |
early atomic theory
atomic theory of matter |
| KEYWORDS: |
nuclear structure |
| OTHER: |
general chemistry |
|
22. If two different nuclides have the same mass number, it must mean that
| |
a. |
the combined number of protons and neutrons are the same. |
| |
b. |
both have the same number of neutrons. |
| |
c. |
both have the same number of electrons. |
| |
d. |
both have the same number of protons. |
| |
e. |
they are isotopes. |
| ANSWER: |
a |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
2.3 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.31 – Define atomic number, mass number, and nuclide. |
| TOPICS: |
early atomic theory
atomic theory of matter |
| KEYWORDS: |
nuclear structure |
| OTHER: |
general chemistry |
|
23. The number of protons in a given nucleus determines the
| |
a. |
mass number. |
| |
b. |
atomic number. |
| |
c. |
number of electrons. |
| |
d. |
number of protons. |
| |
e. |
number of isotopes. |
| ANSWER: |
b |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
2.3 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.31 – Define atomic number, mass number, and nuclide. |
| TOPICS: |
early atomic theory
atomic theory of matter |
| KEYWORDS: |
nuclear structure |
| OTHER: |
general chemistry |
|
| 24. Which nuclide has the same number of protons as ?
| ANSWER: |
e |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
2.3 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.32 – Write the nuclide symbol for a given nuclide. |
| TOPICS: |
early atomic theory
atomic theory of matter |
| KEYWORDS: |
nuclear structure |
| OTHER: |
general chemistry |
|
25. How many electrons does the ion have?
| |
a. |
18 |
| |
b. |
36 |
| |
c. |
16 |
| |
d. |
34 |
| |
e. |
19 |
| ANSWER: |
a |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
2.3 |
| HAS VARIABLES: |
True |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.32 – Write the nuclide symbol for a given nuclide. |
| TOPICS: |
early atomic theory
atomic theory of matter |
|
26. How many protons are there in the chromium-52 nuclide?
| |
a. |
29 |
| |
b. |
76 |
| |
c. |
23 |
| |
d. |
24 |
| |
e. |
28 |
| ANSWER: |
d |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
2.3 |
| HAS VARIABLES: |
True |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.32 – Write the nuclide symbol for a given nuclide. |
| TOPICS: |
early atomic theory
atomic theory of matter |
| KEYWORDS: |
atomic symbol |
| OTHER: |
general chemistry |
|
27. How many neutrons are there in the cobalt-59 nuclide?
| |
a. |
27 |
| |
b. |
2 |
| |
c. |
86 |
| |
d. |
59 |
| |
e. |
32 |
| ANSWER: |
e |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
2.3 |
| HAS VARIABLES: |
True |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.32 – Write the nuclide symbol for a given nuclide. |
| TOPICS: |
early atomic theory
atomic theory of matter |
| KEYWORDS: |
atomic symbol |
| OTHER: |
general chemistry |
|
28. An atom that has the same number of neutrons as is
| |
a. |
58Zn. |
| |
b. |
60Cu. |
| |
c. |
. |
| |
d. |
. |
| |
e. |
59Co. |
| ANSWER: |
b |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
2.3 |
| HAS VARIABLES: |
True |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.32 – Write the nuclide symbol for a given nuclide. |
| TOPICS: |
early atomic theory
atomic theory of matter |
| KEYWORDS: |
atomic symbol |
| OTHER: |
general chemistry |
|
29. Which combination of protons, neutrons, and electrons correctly represents a 57Fe nuclide?
| |
a. |
26 protons, 31 neutrons, 57 electrons |
| |
b. |
26 protons, 31 neutrons, 31 electrons |
| |
c. |
26 protons, 31 neutrons, 26 electrons |
| |
d. |
57 protons, 26 neutrons, 57 electrons |
| |
e. |
57 protons, 26 neutrons, 26 electrons |
| ANSWER: |
c |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
2.3 |
| HAS VARIABLES: |
True |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.32 – Write the nuclide symbol for a given nuclide. |
| TOPICS: |
early atomic theory
atomic theory of matter |
| KEYWORDS: |
atomic symbol |
| OTHER: |
general chemistry |
|
| 30. The species that has the same number of neutrons as is
| ANSWER: |
a |
| POINTS: |
1 |
| DIFFICULTY: |
moderate |
| REFERENCES: |
2.3 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.32 – Write the nuclide symbol for a given nuclide. |
| TOPICS: |
early atomic theory
atomic theory of matter |
| KEYWORDS: |
atomic symbol |
| OTHER: |
general chemistry |
|
| 31. Which of the following nuclides contains more protons than neutrons?
| ANSWER: |
a |
| POINTS: |
1 |
| DIFFICULTY: |
moderate |
| REFERENCES: |
2.3 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.32 – Write the nuclide symbol for a given nuclide. |
| TOPICS: |
early atomic theory
atomic theory of matter |
|
32. How many neutrons are there in 8 molecules of ?
| |
a. |
160 |
| |
b. |
80 |
| |
c. |
3 |
| |
d. |
304 |
| |
e. |
144 |
| ANSWER: |
a |
| POINTS: |
1 |
| DIFFICULTY: |
difficult |
| REFERENCES: |
2.3 |
| HAS VARIABLES: |
True |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.32 – Write the nuclide symbol for a given nuclide. |
| TOPICS: |
early atomic theory | atomic theory of matter |
|
33. Suppose atom 1 has the same number of protons as atom 2, and atom 2 has the same number of neutrons as atom 3. Atom 1 does not have the same number of neutrons as atom 3. Which of the following statements is true?
| |
a. |
Atom 3 must have the same number of protons as atom 2. |
| |
b. |
Atoms 1 and 2 must be isotopes. |
| |
c. |
Atoms 1 and 3 must be isotopes. |
| |
d. |
Atom 2 must have the same number of neutrons as atom 1. |
| |
e. |
Atom 3 must have the same number of protons as atom 1. |
| ANSWER: |
b |
| POINTS: |
1 |
| DIFFICULTY: |
difficult |
| REFERENCES: |
2.3 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.33 – Define and provide examples of isotopes of an element. |
| TOPICS: |
early atomic theory
atomic theory of matter |
| KEYWORDS: |
nuclear structure |
| OTHER: |
general chemistry |
|
34. Which of the following statements is true concerning the two nuclides 16O and 17O ?
| |
a. |
They have the same number of neutrons. |
| |
b. |
They are isotopes. |
| |
c. |
They have the same relative atomic mass. |
| |
d. |
They have the same mass number. |
| |
e. |
They have different chemical properties. |
| ANSWER: |
b |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
2.3 |
| HAS VARIABLES: |
True |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.33 – Define and provide examples of isotopes of an element. |
| TOPICS: |
early atomic theory
atomic theory of matter |
| KEYWORDS: |
isotope |
| OTHER: |
general chemistry |
|
35. Which of the following atomic symbols represents an isotope of 94Mo?
| |
a. |
93Nb |
| |
b. |
95Tc |
| |
c. |
94Tc |
| |
d. |
95Mo |
| |
e. |
94Nb |
| ANSWER: |
d |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
2.3 |
| HAS VARIABLES: |
True |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.33 – Define and provide examples of isotopes of an element. |
| TOPICS: |
early atomic theory
atomic theory of matter |
| KEYWORDS: |
isotope |
| OTHER: |
general chemistry |
|
36. Which of the following represents a pair of isotopes?
| |
Atomic Number |
Mass Number |
| |
a. |
I 17 34
II 18 34 |
| |
b. |
I 7 14
II 8 14 |
| |
c. |
I 17 35
II 17 37 |
| |
d. |
I 17 37
II 18 38 |
| |
e. |
I 7 15
II 8 16 |
| ANSWER: |
c |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
2.3 |
| HAS VARIABLES: |
True |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.33 – Define and provide examples of isotopes of an element. |
| TOPICS: |
early atomic theory
atomic theory of matter |
| KEYWORDS: |
isotope |
| OTHER: |
general chemistry |
|
37. There are three isotopes of carbon differing with respect to
| |
a. |
electron configuration. |
| |
b. |
nuclear charge. |
| |
c. |
number of neutrons. |
| |
d. |
number of protons. |
| |
e. |
atomic number. |
| ANSWER: |
c |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
2.3 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.33 – Define and provide examples of isotopes of an element. |
| TOPICS: |
early atomic theory
atomic theory of matter |
| KEYWORDS: |
isotope |
| OTHER: |
general chemistry |
|
| Chapter_04_Chemical_Reactions
1. Which of the following concerning electrolytes and nonelectrolytes is/are true?
| |
1. |
Some molecular substances are electrolytes. |
| |
2. |
All electrolytes are ionic substances. |
| |
3. |
Strong electrolytes partially ionize in solution. |
| |
a. |
1 only |
| |
b. |
2 only |
| |
c. |
3 only |
| |
d. |
1 and 3 |
| |
e. |
2 and 3 |
| ANSWER: |
a |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
4.1 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.93 – Explain how an electrolyte makes a solution electrically conductive. |
| TOPICS: |
chemical reactions
ions in aqueous solution |
|
2. Which of the following correctly describes one or more of the differences between a strong and weak electrolyte?
| |
a. |
A strong electrolyte partially ionizes in solution and a weak electrolyte completely ionizes in solution. |
| |
b. |
Strong electrolytes are all classified as soluble ionic substances and weak electrolytes are all classified as soluble molecular substances. |
| |
c. |
Strong electrolytes produce more ions per mole of substance in solution than weak electrolytes. |
| |
d. |
Weak electrolytes inhibit the flow of electricity. |
| |
e. |
Strong electrolytes are weak conductors of electricity. |
| ANSWER: |
c |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
4.1 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.94 – Give examples of substances that are electrolytes. |
| TOPICS: |
chemical reactions
ions in aqueous solution |
|
3. Which of the following is a nonelectrolyte in aqueous solution?
| |
a. |
NH4F |
| |
b. |
NH4Cl |
| |
c. |
NaHS |
| |
d. |
CH4 |
| |
e. |
Na2S |
| ANSWER: |
d |
| POINTS: |
1 |
| DIFFICULTY: |
moderate |
| REFERENCES: |
4.1 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.95 – Define nonelectrolyte and provide an example of a molecular substance that is a nonelectrolyte. |
| TOPICS: |
chemical reactions
ions in aqueous solution |
| KEYWORDS: |
electrolyte | nonelectrolyte |
| OTHER: |
general chemistry |
|
4. Which of the following solutions would be expected to be the best conductor of an electric current at room temperature?
| |
a. |
0.10 M Na2SO4 |
| |
b. |
1.0 M CH3COOH |
| |
c. |
0.10 M NaCl |
| |
d. |
0.10 M CO(NH2)2 |
| |
e. |
0.10 M CH3COOH |
| ANSWER: |
a |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
4.1 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.96 – Compare the properties of solutions that contain strong electrolytes and weak electrolytes. |
| TOPICS: |
chemical reactions
ions in aqueous solution |
| KEYWORDS: |
electrolyte |
| OTHER: |
general chemistry |
|
5. Which of the following solutes, dissolved in 1000 g of water, would provide the greatest number of particles?
| |
a. |
0.030 mol of urea, CO(NH2)2 |
| |
b. |
0.030 mol of ammonium nitrate, NH4NO3 |
| |
c. |
0.030 mol of barium chloride, BaCl2 |
| |
d. |
0.030 mol of acetic acid, CH3COOH |
| |
e. |
0.030 mol of calcium sulfate, CaSO4 |
| ANSWER: |
c |
| POINTS: |
1 |
| DIFFICULTY: |
moderate |
| REFERENCES: |
4.1 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.96 – Compare the properties of solutions that contain strong electrolytes and weak electrolytes. |
| TOPICS: |
chemical reactions
ions in aqueous solution |
| KEYWORDS: |
electrolyte |
| OTHER: |
general chemistry |
|
6. Which of the following aqueous solutions would be expected to be the best conductor of an electric current at room temperature?
| |
a. |
0.10 M CH3COOH |
| |
b. |
0.10 M HCl |
| |
c. |
0.10 M Na2SO4 |
| |
d. |
0.10 M NaCl |
| |
e. |
0.10 M H3PO4 |
| ANSWER: |
c |
| POINTS: |
1 |
| DIFFICULTY: |
moderate |
| REFERENCES: |
4.1 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.96 – Compare the properties of solutions that contain strong electrolytes and weak electrolytes. |
| TOPICS: |
chemical reactions
ions in aqueous solution |
| KEYWORDS: |
electrolyte |
| OTHER: |
general chemistry |
|
7. Which of the following ions is most likely to form an insoluble sulfate?
| |
a. |
Ca2+ |
| |
b. |
Cl– |
| |
c. |
K+ |
| |
d. |
Li+ |
| |
e. |
S2– |
| ANSWER: |
a |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
4.1 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.97 – Learn the solubility rules for ionic compounds. |
| TOPICS: |
chemical reactions
ions in aqueous solution |
| KEYWORDS: |
solubility |
| OTHER: |
general chemistry |
|
8. Which of the following compounds is soluble in water?
| |
a. |
Sc2O3 |
| |
b. |
Li3P |
| |
c. |
CuS |
| |
d. |
Hg2I2 |
| |
e. |
NiS |
| ANSWER: |
b |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
4.1 |
| HAS VARIABLES: |
True |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.98 – Use the solubility rules. (Example 4.1) |
| TOPICS: |
chemical reactions
ions in aqueous solution |
|
9. Which of the following compounds is insoluble in water?
| |
a. |
FeCO3 |
| |
b. |
K2CO3 |
| |
c. |
(NH4)2CO3 |
| |
d. |
Na2CO3 |
| |
e. |
Li2CO3 |
| ANSWER: |
a |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
4.1 |
| HAS VARIABLES: |
True |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.98 – Use the solubility rules. (Example 4.1) |
| TOPICS: |
chemical reactions
ions in aqueous solution |
| KEYWORDS: |
solubility rules |
| OTHER: |
general chemistry |
|
10. Which of the following compounds is insoluble in water?
| |
a. |
PbSO4 |
| |
b. |
ZnSO4 |
| |
c. |
Na2SO4 |
| |
d. |
(NH4)2SO4 |
| |
e. |
Cr2(SO4)3 |
| ANSWER: |
a |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
4.1 |
| HAS VARIABLES: |
True |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.98 – Use the solubility rules. (Example 4.1) |
| TOPICS: |
chemical reactions
ions in aqueous solution |
| KEYWORDS: |
solubility rules |
| OTHER: |
general chemistry |
|
11. Which of the following compounds is soluble in water?
| |
a. |
AgCl |
| |
b. |
AgI |
| |
c. |
PbSO4 |
| |
d. |
Pb(C2H3O2)2 |
| |
e. |
HgI2 |
| ANSWER: |
d |
| POINTS: |
1 |
| DIFFICULTY: |
moderate |
| REFERENCES: |
4.1 |
| HAS VARIABLES: |
True |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.98 – Use the solubility rules. (Example 4.1) |
| TOPICS: |
chemical reactions
ions in aqueous solution |
|
12. Which of the following compounds is insoluble in water?
| |
a. |
NH4Cl |
| |
b. |
KCl |
| |
c. |
CoCl2 |
| |
d. |
PbCl2 |
| |
e. |
LiCl |
| ANSWER: |
d |
| POINTS: |
1 |
| DIFFICULTY: |
moderate |
| REFERENCES: |
4.1 |
| HAS VARIABLES: |
True |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.98 – Use the solubility rules. (Example 4.1) |
| TOPICS: |
chemical reactions
ions in aqueous solution |
| KEYWORDS: |
solubility rules |
| OTHER: |
general chemistry |
|
13. Which of the following concerning electrolytes and the solubility rules is/are true?
| |
1. |
The solubility rules apply only to ionic substances. |
| |
2. |
All soluble ionic compounds are considered strong electrolytes. |
| |
3. |
The solubility rules apply to aqueous and non-aqueous solutions. |
| |
a. |
1 only |
| |
b. |
2 only |
| |
c. |
3 only |
| |
d. |
1 and 2 |
| |
e. |
1, 2, and 3 |
| ANSWER: |
d |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
4.1 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.99 – Use the solubility rules. |
| TOPICS: |
chemical reactions
ions in aqueous solution |
|
14. A student is given a sample in lab that contains one of the ions listed below. After adding a few drops of AgNO3 solution to a portion of the unknown sample, the student observed a grayish precipitate. After adding a few drops of Mg(NO3)2 solution to another portion of the unknown sample, the student got a black precipitate. Based on these observations, what is the only possible ion in this student’s sample?
| |
a. |
Cl– |
| |
b. |
F– |
| |
c. |
C2H3O2– |
| |
d. |
S2– |
| |
e. |
SO42– |
| ANSWER: |
d |
| POINTS: |
1 |
| DIFFICULTY: |
difficult |
| REFERENCES: |
4.1 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.98 – Use the solubility rules. (Example 4.1) |
| TOPICS: |
chemical reactions
ions in aqueous solution |
| KEYWORDS: |
solubility rules |
| OTHER: |
general chemistry |
|
15. Which anion will form a precipitate with NH4+?
| |
a. |
Cl– |
| |
b. |
SO42– |
| |
c. |
C2H3O2– |
| |
d. |
S2– |
| |
e. |
none of the above |
| ANSWER: |
e |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
4.1 |
| HAS VARIABLES: |
True |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.98 – Use the solubility rules. (Example 4.1) |
| TOPICS: |
chemical reactions
ions in aqueous solution |
|
16. Which anion will form a precipitate with Ca2+?
| |
a. |
Cl– |
| |
b. |
OH– |
| |
c. |
C2H3O2– |
| |
d. |
Br– |
| |
e. |
none of the above |
| ANSWER: |
b |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
4.1 |
| HAS VARIABLES: |
True |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.98 – Use the solubility rules. (Example 4.1) |
| TOPICS: |
chemical reactions
ions in aqueous solution |
|
| 17. Identify the spectator ions in the following reaction.
Ca2+(aq) + 2NO3–(aq) + 2Na+(aq) + CO32–(aq) → CaCO3(s) + 2Na+(aq) + NO3–(aq)
| |
a. |
NO3– and CO32– |
| |
b. |
Ca2+ and Na+ |
| |
c. |
Ca2+ and CO32– |
| |
d. |
Ca2+ and NO3– |
| |
e. |
Na+ and NO3– |
| ANSWER: |
e |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
4.2 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.100 – From the complete ionic equation, write the net ionic equation. |
| TOPICS: |
chemical reactions
ions in aqueous solution |
| KEYWORDS: |
ionic equation | net ionic equation |
| OTHER: |
general chemistry |
|
18. Which of the following concerning molecular and ionic equations is/are correct?
| |
1. |
Molecular equations cannot be written for reactions involving ionic substances. |
| |
2. |
Charge must be balanced in a properly balanced net ionic reaction. |
| |
3. |
In a balanced complete ionic reaction only the strong electrolytes are shown as the individual aqueous ions. |
| |
a. |
1 only |
| |
b. |
2 only |
| |
c. |
3 only |
| |
d. |
1 and 3 |
| |
e. |
2 and 3 |
| ANSWER: |
e |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
4.2 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.100 – From the complete ionic equation, write the net ionic equation. |
| TOPICS: |
chemical reactions
ions in aqueous solution |
|
19. Which of the following would not be depicted as the individual ions on the reactant side of a complete ionic reaction?
| |
a. |
KOH |
| |
b. |
HI |
| |
c. |
CuBr2 |
| |
d. |
CuCO3 |
| |
e. |
TiI3 |
| ANSWER: |
d |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
4.2 |
| HAS VARIABLES: |
True |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.100 – From the complete ionic equation, write the net ionic equation. |
| TOPICS: |
chemical reactions
ions in aqueous solution |
|
20. Which of the following would not be depicted as the individual ions on the reactant side of a complete ionic reaction?
| |
a. |
RbOH |
| |
b. |
HNO3 |
| |
c. |
ZnCl2 |
| |
d. |
CH3COOH |
| |
e. |
TiI3 |
| ANSWER: |
d |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
4.2 |
| HAS VARIABLES: |
True |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.100 – From the complete ionic equation, write the net ionic equation. |
| TOPICS: |
chemical reactions
ions in aqueous solution |
|
| 21. Identify the spectator ion(s) in the following reaction.
Cu(OH)2(s) + 2H+(aq) + 2Cl–(aq) → Cu2+(aq) + 2Cl–(aq) + 2H2O(l)
| |
a. |
Cu2+ and Cl– |
| |
b. |
Cu2+ |
| |
c. |
Cu(OH)2 |
| |
d. |
Cl– |
| |
e. |
H+ and Cl– |
| ANSWER: |
d |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
4.2 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.100 – From the complete ionic equation, write the net ionic equation. |
| TOPICS: |
chemical reactions
ions in aqueous solution |
| KEYWORDS: |
ionic equation | net ionic equation |
| OTHER: |
general chemistry |
|
| 22. Identify the spectator ion(s) in the following reaction.
Zn(OH)2(s) + 2K+(aq) + 2OH–(aq) → 2K+(aq) + Zn(OH)4–(aq)
| |
a. |
K+ and Zn(OH)42– |
| |
b. |
K+ |
| |
c. |
Zn(OH)2 |
| |
d. |
Zn(OH)42– |
| |
e. |
K+ and OH– |
| ANSWER: |
b |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
4.2 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.100 – From the complete ionic equation, write the net ionic equation. |
| TOPICS: |
chemical reactions
ions in aqueous solution |
| KEYWORDS: |
ionic equation | net ionic equation |
| OTHER: |
general chemistry |
|
23. What precipitate forms when aqueous solutions of calcium bromide and potassium phosphate are mixed?
| |
a. |
(KBr)2(s) |
| |
b. |
Ca3(PO4)2(s) |
| |
c. |
CaPO4–(s) |
| |
d. |
KBr(s) |
| |
e. |
CaPO4(s) |
| ANSWER: |
b |
| POINTS: |
1 |
| DIFFICULTY: |
moderate |
| REFERENCES: |
4.2 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.101 – Write net ionic equations. (Example 4.2) |
| TOPICS: |
chemical reactions
ions in aqueous solution |
|
24. Which equation best represents the net ionic equation for the reaction that occurs when aqueous solutions of potassium phosphate and iron(II) nitrate are mixed?
| |
a. |
3Fe2+(aq) + 2PO43–(aq) → Fe3(PO4)2(s) |
| |
b. |
2K+(aq) + Fe(NO3)2(aq) → 2KNO3(aq) + Fe2+(aq) |
| |
c. |
3Fe2+(aq) + 2PO43–(aq) → Fe3(PO4)2(aq) |
| |
d. |
2K3PO4(aq) + 3Fe2+(aq) → Fe3(PO4)2(s) + (K+)6(aq) |
| |
e. |
2K3PO4(aq) + 3Fe(NO3)2(aq) → Fe3(PO4)2(s) + 6KNO3(aq) |
| ANSWER: |
a |
| POINTS: |
1 |
| DIFFICULTY: |
moderate |
| REFERENCES: |
4.2 |
| HAS VARIABLES: |
True |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.101 – Write net ionic equations. (Example 4.2) |
| TOPICS: |
chemical reactions
types of chemical reactions |
|
25. Which net ionic equation best represents the reaction that occurs when an aqueous solution of lithium nitrate is mixed with an aqueous solution of ammonium chloride?
| |
a. |
Li+(aq) + Cl–(aq) → LiCl(s) |
| |
b. |
NH4+(aq) + NO3–(aq) → NH4NO3(aq) |
| |
c. |
NH4Cl(aq) + LiNO3(aq) → LiCl(s) + NH4NO3(aq) |
| |
d. |
No net reaction occurs. |
| |
e. |
Li+(aq) + NH4Cl(aq) → LiCl(s) + NH4+(aq) |
| ANSWER: |
d |
| POINTS: |
1 |
| DIFFICULTY: |
moderate |
| REFERENCES: |
4.2 |
| HAS VARIABLES: |
True |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.101 – Write net ionic equations. (Example 4.2) |
| TOPICS: |
chemical reactions
types of chemical reactions |
| KEYWORDS: |
precipitation reaction |
| OTHER: |
general chemistry |
|
26. A precipitate is expected when an aqueous solution of lithium iodide is added to an aqueous solution of
| |
a. |
calcium nitrate. |
| |
b. |
barium hydroxide. |
| |
c. |
lead perchlorate. |
| |
d. |
iron(II) chloride. |
| |
e. |
sodium sulfate. |
| ANSWER: |
c |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
4.3 |
| HAS VARIABLES: |
True |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.102 – Recognize precipitation (exchange) reactions. |
| TOPICS: |
chemical reactions
types of chemical reactions |
| KEYWORDS: |
precipitation reaction |
| OTHER: |
general chemistry |
|
27. Which of the following concerning precipitation reactions is/are correct?
| |
1. |
A precipitation reaction is a type of chemical reaction that forms a gaseous product (such as CO2). |
| |
2. |
A precipitation reaction is possible when two or more aqueous solutions of strong or weak electrolytes are mixed. |
| |
3. |
Only ionic compounds will react to form precipitates in a precipitation reactions. |
| |
a. |
1 only |
| |
b. |
2 only |
| |
c. |
3 only |
| |
d. |
2 and 3 |
| |
e. |
1, 2, and 3 |
| ANSWER: |
b |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
4.3 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.102 – Recognize precipitation (exchange) reactions. |
| TOPICS: |
chemical reactions
types of chemical reactions |
|
28. Which of the following combinations will produce a precipitate?
| |
1. |
AgNO3(aq) and HCl(aq) |
| |
2. |
HCl(aq) and Na2CO3(aq) |
| |
3. |
NaOH(aq) and K3PO4(aq) |
| |
a. |
1 only |
| |
b. |
2 only |
| |
c. |
3 only |
| |
d. |
2 and 3 |
| |
e. |
1, 2, and 3 |
| ANSWER: |
a |
| POINTS: |
1 |
| DIFFICULTY: |
moderate |
| REFERENCES: |
4.3 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.102 – Recognize precipitation (exchange) reactions. |
| TOPICS: |
chemical reactions
types of chemical reactions |
|
29. Which of the following are classified as precipitation reactions?
| |
1. |
AgNO3(aq) + HCl(aq) → AgCl(s) + HNO3(aq) |
| |
2. |
2Mg(s) + O2(g) → 2MgO(s) |
| |
3. |
Zn(s) + 2Ag+(aq) → 2Ag(s) + Zn2+(aq) |
| |
a. |
1 only |
| |
b. |
2 only |
| |
c. |
3 only |
| |
d. |
2 and 3 |
| |
e. |
1, 2, and 3 |
| ANSWER: |
a |
| POINTS: |
1 |
| DIFFICULTY: |
moderate |
| REFERENCES: |
4.3 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.102 – Recognize precipitation (exchange) reactions. |
| TOPICS: |
chemical reactions
types of chemical reactions |
|
30. A precipitate will form when a freshly prepared aqueous carbonic acid solution is added to an aqueous solution of
| |
a. |
potassium carbonate. |
| |
b. |
ammonium chloride. |
| |
c. |
nitrous acid. |
| |
d. |
calcium hydroxide. |
| |
e. |
sodium chloride. |
| ANSWER: |
d |
| POINTS: |
1 |
| DIFFICULTY: |
moderate |
| REFERENCES: |
4.3 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.102 – Recognize precipitation (exchange) reactions. |
| TOPICS: |
chemical reactions
types of chemical reactions |
| KEYWORDS: |
precipitation reaction |
| OTHER: |
general chemistry |
|
31. When a solution of lithium chloride and a solution of ammonium sulfate are mixed,
| |
a. |
a new salt is formed. |
| |
b. |
no reaction occurs. |
| |
c. |
a precipitate forms. |
| |
d. |
an acid and a base are formed. |
| |
e. |
a gas is evolved. |
| ANSWER: |
b |
| POINTS: |
1 |
| DIFFICULTY: |
difficult |
| REFERENCES: |
4.3 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.102 – Recognize precipitation (exchange) reactions. |
| TOPICS: |
chemical reactions
types of chemical reactions |
| KEYWORDS: |
precipitation reaction |
| OTHER: |
general chemistry |
|
32. When solutions of barium iodide and lithium sulfate are mixed, the spectator ions in the resulting reaction are
| |
a. |
only SO42–. |
| |
b. |
both Li+ and I–. |
| |
c. |
only I–. |
| |
d. |
only Li+. |
| |
e. |
only Ba2+. |
| ANSWER: |
b |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
4.3 |
| HAS VARIABLES: |
True |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.103 – Write molecular, complete ionic, and net ionic equations for precipitation reactions. |
| TOPICS: |
chemical reactions
types of chemical reactions |
| KEYWORDS: |
precipitation reaction |
| OTHER: |
general chemistry |
|
33. Aqueous solutions of sodium sulfide and copper(II) chloride are mixed together. Which statement is correct?
| |
a. |
CuS will precipitate from solution. |
| |
b. |
NaCl will precipitate from solution. |
| |
c. |
No precipitate will form. |
| |
d. |
Both NaCl and CuS will precipitate from solution. |
| |
e. |
No reaction will occur. |
| ANSWER: |
a |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
4.3 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.104 – Decide whether a precipitation reaction will occur. (Example 4.3) |
| TOPICS: |
chemical reactions
types of chemical reactions |
| KEYWORDS: |
precipitation reaction |
| OTHER: |
general chemistry |
|
34. Which net ionic equation best represents the reaction that occurs when an aqueous solution of barium chloride is mixed with an aqueous solution of lithium sulfate?
| |
a. |
2H+(aq) + 2Cl–(aq) → 2HCl(g) |
| |
b. |
Ba2+(aq) + SO42–(aq) → BaSO4(s) |
| |
c. |
Ba2+(aq) + 2Cl–(aq) + 2Li+(aq) + SO42–(aq) → BaSO4(s) + 2LiCl(aq) |
| |
d. |
BaCl2(aq) + Li2SO4(aq)→ BaSO4(s)+ 2LiCl(aq) |
| |
e. |
No net reaction occurs. |
| ANSWER: |
b |
| POINTS: |
1 |
| DIFFICULTY: |
moderate |
| REFERENCES: |
4.3 |
| HAS VARIABLES: |
True |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.104 – Decide whether a precipitation reaction will occur. (Example 4.3) |
| TOPICS: |
chemical reactions
types of chemical reactions |
| KEYWORDS: |
precipitation reaction |
| OTHER: |
general chemistry |
|
35. What products result from mixing aqueous solutions of Cr(NO3)2(aq) and NaNO3(aq)?
| |
a. |
Cr(OH)2(s), Na+(aq), and NO3−(aq) |
| |
b. |
Cr(OH)2(s) and NaNO3(s) |
| |
c. |
Cr2(OH)2(aq) and NaNO3(aq) |
| |
d. |
Cr(OH)2(aq) and NaNO3(s) |
| |
e. |
Cr(OH)2(s), N2(g), and H2O(l) |
| ANSWER: |
a |
| POINTS: |
1 |
| DIFFICULTY: |
difficult |
| REFERENCES: |
4.3 |
| HAS VARIABLES: |
True |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.105 – Determine the product of a precipitation reaction. |
| TOPICS: |
chemical reactions
types of chemical reactions |
|
36. What products result from mixing aqueous solutions of Ni(C2H3O2)2(aq) and K3PO4(aq)?
| |
a. |
Ni2PO4(s) and K3(C2H3O2)2(aq) |
| |
b. |
Ni3(PO4)2(s) and KC2H3O2(s) |
| |
c. |
NiP(s), CO2(g), H2O(l), KOH(aq), and PH3(g). |
| |
d. |
NiPO4(s) and K3(C2H3O2)2(aq) |
| |
e. |
Ni3(PO4)2(s), K+(aq), and C2H3O2−(aq) |
| ANSWER: |
e |
| POINTS: |
1 |
| DIFFICULTY: |
difficult |
| REFERENCES: |
4.3 |
| HAS VARIABLES: |
True |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.105 – Determine the product of a precipitation reaction. |
| TOPICS: |
chemical reactions
types of chemical reactions |
|
37. Which of the following is not an Arrhenius base?
| |
a. |
NH3 |
| |
b. |
NaOH |
| |
c. |
Ba(OH)2 |
| |
d. |
Mg(OH)2 |
| |
e. |
all are Arrhenius bases |
| ANSWER: |
e |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
4.4 |
| HAS VARIABLES: |
True |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.106 – Define Arrhenius acid and Arrhenius base. |
| TOPICS: |
chemical reactions
types of chemical reactions |
| KEYWORDS: |
acid-base reaction | base definition |
| OTHER: |
general chemistry |
|
38. Which of the following may be classified as an acid-base reaction?
| |
1. |
AgNO3(aq) + HCl(aq) → AgCl(s) + HNO3(aq) |
| |
2. |
2Mg(s) + O2(g) → 2MgO(s) |
| |
3. |
Zn(s) + 2Ag+(aq) → 2Ag(s) + Zn2+(aq) |
| |
a. |
1 only |
| |
b. |
2 only |
| |
c. |
3 only |
| |
d. |
1, 2, and 3 |
| |
e. |
none |
| ANSWER: |
e |
| POINTS: |
1 |
| DIFFICULTY: |
easy |
| REFERENCES: |
4.4 |
| HAS VARIABLES: |
False |
| LEARNING OBJECTIVES: |
GENE.EBBI.13.106 – Define Arrhenius acid and Arrhenius base. |
| TOPICS: |
chemical reactions
types of chemical reactions |
|
Related
Reviews
There are no reviews yet.