Multiple
Choice
Identify the letter of the choice that best completes the statement or answers the
question.
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1.
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A nitride ion has ____
electrons.
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2.
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What charge is likely on a
rubidium cation?
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3.
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What is the charge on the lead
ion in PbS2?
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4.
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All of the following are named
correctly EXCEPT a. | NiCl2·6H2O; nickel(II) chloride
hexahydrate. | b. | MnO2; manganese(IV) oxide. | c. | TiBr4; titanium(IV) bromide. | d. | AuI; gold(I) iodide. | e. | FeSO4; iron(I)
sulfate. | | |
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5.
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What is the correct name for
NH4ClO4? a. | ammonia hydrogen
chlorate | b. | ammonia hydrogen perchlorate | c. | ammonium perchlorate | d. | ammonium
hypochlorite | e. | ammonium hydrochloric acid | | |
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6.
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What is the correct name for
Cr(NO3)2? a. | chromium(II)
nitrate | b. | chromium(II) dinitrate | c. | chromium dinitrate | d. | dinitrochromate | e. | chromium(II) nitride | | |
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7.
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What is the formula of sodium
bicarbonate, or baking soda? a. | CH2ONa | b. | NaHCO3 | c. | N2CO3 | d. | Na2CO3 | e. | H2CO3 | | |
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8.
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How many grams are in 0.50 mol
iron(II) sulfide? a. | 0.057 g | b. | 8.2 g | c. | 18 g | d. | 44.0 g | e. | 1.8 × 102
g | | |
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9.
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What is the mass of one carbon
monoxide molecule? a. | 4.65 ×
10-23 g | b. | 7.31 ×
10-23 g | c. | 1.66 ×
10-22 g | d. | 4.22 ×
10-22 g | e. | 2.81 ×
10-21 g | | |
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10.
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Phosphorus, P, is combined with
chlorine, Cl2, to give a gaseous compound with the formula PClx. If you start
with 2.097 g of P and isolate 9.298 g of PClx, what is the value of x?
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