21 C
Chemistry Review Questions #2
1. In the periodic chart the noble gases are listed on the
a. Lower left
b. Middle
c. Right
d. Far left
e. Far right
2. Cations have
a. Negative charge
b. No charge
c. More protons than electrons
d. More electrons than protons
3. Reaction rates can be affected by
a. Temperature
b. Surface area and catalysts
c. Catalysts
d. All of the above
4. In an aqueous solution a base donates
a. H ions
b. Hydroxide ions
c. Electrons
d. Protons
5. In a double replacement reaction the products are always
a. Metallic and non-metallic
b. Salt and water
c. Acidic
d. Gases
6. Oxidation is defined as the
a. Gain of electrons by a substance
b. Loss of electrons by a substance
c. Gain of protons by a substance
d. Loss of protons by a substance
7. Sublimation is the
a. Conversion of a vapor or gas to a liquid
b. Conversion of a liquid to a solid
c. Conversion of a solid to a gas
d. Conversion of a liquid to a gas
8. Which of these substances forms an alkaline solution in water
a. Ca(OH)2
b. H2SO4
c. MgSO4
d. NaCl
Indian River State College, ASC
2/11, rev 2/15 mds/cs
9. Which diagram represents a non-polar co-valent bond
a. Li+ + OHH
b.
O
H
c.
Na - Cl
.. ..
d.
: Cl : Cl :
.. ..
10. An excess of which of these ions makes a solution basic
a. Chloride
b. Hydroxide
c. Hydronium
d. Sodium
11. Krypton is an example of a
a. Salt
b. Base
c. Acid
d. Gas
12. In a flask containing 300 mL of CaCl2(aq), the solvent is
a. Ca++
b. Ca(OH)2
c. Cld. Water
13. Compound A reacts with compound B to give compound C plus compound D. A + B → C + D If
in a closed system you have 8 grams of C and 9 grams of D and 4 grams of A that react, how
much B is required
a. 17
b. 13
c. 4
d. -11
14. A sample of an ideal gas at room temperature is transferred to a larger container, the
a. Temperature will increase
b. Volume will decrease
c. Pressure will increase
d. Pressure will decrease
15. Which of the following formulas are most probable for a compound formed from Fe (oxidation
number +2) and oxygen (oxidation number -2)
a. FeO
b. Fe2O2
c. Fe2O3
d. Fe4O6
Indian River State College, ASC
2/11, rev 2/15 mds/cs
16. Which subatomic particle has a mass of 1U and a charge of 0
a. Electron
b. Proton
c. Neutron
d. Atom
17. The formula for the ionic compound formed between Li and S is
a. Li2S2
b. Li2S
c. LiS
d. LiS2
18. Which is an alkaline earth metal
a. K
b. Ca
c. Sc
d. Br
19. When an ionic bond is formed
a. Electrons are shared between 2 atoms
b. Electrons are transferred from one atom to another
c. Electrons are split into two
d. Electrons are created
20. Which non-metallic element occurs in nature as a diatomic molecule in the gaseous state
a. C
b. N
c. Krypton
d. P
e. All are cations
21. Which of the following is an anion
a. F
b. F+
c. Fd. F0
22. Sugar water is a/an
a. Element
b. Compound
c. Homogeneous mixture
d. Heterogeneous mixture
23. A certain isotope has no charge, 17 electrons and 20 neutrons, what is it
a. 20O
b. 40Ca
c. 37Cd
d. 37Rb
e. 37Cl
Indian River State College, ASC
2/11, rev 2/15 mds/cs
24. The formula mass of (NH4)2SO4 is
a. 84.12
b. 116.12
c. 118.13
d. 132.14
25. The maximum number of electrons that the F sublevel can hold is
a. 2
b. 6
c. 10
d. 14
26. A single atom that has a positive or negative charge is called
a. Molecule
b. Monatomic ion
c. Polyatomic ion
d. Compound
27. Which one of the following polyatomic ions carries a positive charge
a. Ammonium ion
b. Nitrate ion
c. Sulfate ion
d. Cyanide ion
28. The temperature 00k is called
a. Standard temperature
b. Absolute zero
c. Freezing point of water
d. Room temperature
29. An example of an element is
a. Water
b. Air
c. Salt
d. Iron
30. A negatively charged subatomic particle which moves around the nucleus of an atom is called
a/an
a. Electron
b. Proton
c. Neutron
d. Ion
31. What is the Lewis structure for N2 and what type of bond is it
a. Single bond
b. Double bond
c. Triple bond
d. Three single bonds
Indian River State College, ASC
2/11, rev 2/15 mds/cs
32. What is the term for a chemical bond characterized by the sharing of one or more pairs of
valence electrons
a. Covalent bond
b. Electrovalent bond
c. Ionic bond
d. Valence bond
33. Which one of the subatomic particles has the smallest mass
a. Proton
b. Electron
c. Neutron
d. Atom
e. Molecular mass
34. The compound that has the empirical formula CH3 is
a. C2H4
b. C2H6
c. C3H8
d. C4H10
35. The arrow → in a chemical equation means
a. Equal to
b. Is proportional to
c. Yields or produces
d. Is directly related to
36. What is the term for a type of reaction in which two substances react to form a single compound
a. Combination
b. Decomposition
c. Single replacement
d. Double replacement
37. What is the term for a substance produced from a chemical change
a. Catalyst
b. Compound
c. Product
d. Reactant
38. The common metric unit for length is called the
a. Second
b. Gram
c. Liter
d. Meter
39. Brass is an alloy of copper and zinc and the percentage of copper can vary from 60-80%, brass is
a/an
a. Element
b. Compound
c. Homogeneous mixture
d. Heterogeneous mixture
Indian River State College, ASC
2/11, rev 2/15 mds/cs
Chemistry Quiz 2 Answers
Problem #
Answer
1
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E
C
D
B
A
B
C
A
A
B
D
D
B
D
A
C
B
B
B
B
C
C
E
D
D
B
A
B
D
A
C
A
B
B
C
A
C
D
C
Fold, place your answers below and then check
Correct answers to the left
Problem #
Answer
1
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39
Indian River State College, ASC
2/11, rev 2/15 mds/cs