Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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How many atoms of fluorine are present in a molecule of carbon tetrafluoride,
CF4?
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2.
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What is the formula for zinc fluoride?
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3.
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What is the formula for barium hydroxide?
a. | BaOH | c. | Ba(OH)2 | b. | BaOH2 | d. | Ba(OH) |
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4.
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Name the compound KClO3.
a. | potassium chloride | c. | potassium chlorate | b. | potassium trioxychlorite | d. | hypochlorite |
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5.
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Name the compound CuCO3.
a. | copper(I) carbonate | c. | cuprous carbide | b. | cupric trioxycarbide | d. | copper(II)
carbonate |
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6.
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What is the metallic ion in copper(II) chloride?
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7.
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Name the compound SiO2.
a. | silver oxide | c. | silicon dioxide | b. | silicon oxide | d. | monosilicon
dioxide |
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8.
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Name the compound N2O3.
a. | dinitrogen oxide | c. | nitric oxide | b. | nitrogen trioxide | d. | dinitrogen
trioxide |
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9.
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What is the formula for nitrogen trifluoride?
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10.
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What is the oxidation number of hydrogen in most compounds?
a. | –1 | b. | 0 | c. | +1 | d. | It is equal to the algebraic sum of the
oxidation numbers of the nonmetals. |
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11.
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What is the oxidation number of magnesium in MgO?
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12.
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What is the oxidation number of oxygen in CO2?
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13.
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Name the compound SO2 using the Stock system.
a. | sulfur(II) oxide | c. | sulfur dioxide | b. | sulfur(IV) oxide | d. | sulfuric oxide |
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14.
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Name the compound SiO2 using the Stock system.
a. | silica | c. | silicon dioxide | b. | silicon oxide | d. | silicon(IV)
oxide |
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15.
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What is the formula mass of (NH4)2SO4?
a. | 114.09 amu | c. | 128.06 amu | b. | 118.34 amu | d. | 132.13 amu |
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16.
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The molar mass of CCl4 is 153.81 g/mol. How many grams of
CCl4 are needed to have 5.000 mol?
a. | 5 g | c. | 769.0 g | b. | 30.76 g | d. | 796.05 g |
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17.
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The molar mass of NH3 is 17.03 g/mol. How many moles of
NH3 are present in 107.1 g?
a. | 0.1623 mol | c. | 6.289 mol | b. | 3.614 mol | d. | 107.1 mol |
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18.
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How many Cl– ions are present in 2.00 mol of KCl?
a. | 12.04 ´ 1023 | c. | 2.00 | b. | 6.02 ´
1024 | d. | 0.5 |
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19.
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What is the percentage composition of CF4?
a. | 20% C, 80% F | c. | 16.8% C, 83.2% F | b. | 13.6% C, 86.4% F | d. | 81% C, 19% F |
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20.
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What is the percentage composition of oxygen in H2O?
a. | 15.99% | c. | 88.8% | b. | 33% | d. | 99.8% |
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21.
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What is the empirical formula for a compound that is 31.9% potassium, 28.9%
chlorine, and 39.2% oxygen?
a. | KClO2 | c. | K2Cl2O3 | b. | KClO3 | d. | K2Cl2O5 |
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