Matching
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Match each item with the correct statement below. a. | molar volume | b. | molar mass | c. | atomic
mass |
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1.
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the number of grams of an element that is numerically equal to the atomic mass
of the element in amu
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2.
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the mass of a mole of any element or compound
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3.
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the volume occupied by a mole of any gas at STP
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Match each item with the correct statement below. a. | representative particle | d. | percent
composition | b. | mole | e. | standard temperature and pressure | c. | Avogadro's number | f. | empirical
formula |
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4.
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the number of representative particles of a substance present in 1 mole of that
substance
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5.
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an atom, an ion, or a molecule, depending upon the way a substance commonly
exists
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6.
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the SI unit used to measure amount of substance
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7.
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0C and 1 atm
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8.
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the percent by mass of each element in a compound
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9.
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the smallest whole number ratio of the atoms in a compound
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Match each item with the correct statement below. a. | product | d. | balanced equation | b. | reactant | e. | skeleton equation | c. | chemical
equation |
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10.
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a chemical equation that does not indicate relative amounts of reactants and
products
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11.
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a new substance formed in a chemical reaction
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12.
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a starting substance in a chemical reaction
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13.
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a concise representation of a chemical reaction
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14.
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an equation in which each side has the same number of atoms of each
element
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Match each item with the correct statement below. a. | activity series of metals | c. | combustion
reaction | b. | single-replacement reaction | d. | decomposition reaction |
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15.
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a reaction in which a single compound is broken down into simpler
substances
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16.
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a reaction in which oxygen reacts with another substance, often producing heat
or light
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17.
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a reaction in which the atoms of one element replace the atoms of a second
element in a compound
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18.
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a list of metals in order of decreasing reactivity
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Multiple Choice Identify the
choice that best completes the statement or answers the question.
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19.
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What SI unit is used to measure the number of representative particles in a
substance?
a. | kilogram | c. | kelvin | b. | ampere | d. | mole |
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20.
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How many hydrogen atoms are in 5 molecules of isopropyl alcohol, C H O?
a. | 5 (6.02 10) | c. | 35 | b. | 5 | d. | 35 (6.02 10) |
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21.
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Avogadro's number of representative particles is equal to one ____.
a. | kilogram | c. | kelvin | b. | gram | d. | mole |
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22.
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The mass of a mole of NaCl is the ____.
a. | molar mass | c. | molecular mass | b. | atomic mass | d. | gram atomic
mass |
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23.
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What is the molar mass of AuCl3?
a. | 96 g | c. | 232.5 g | b. | 130 g | d. | 303.6 g |
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24.
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What is the molar mass of (NH ) CO ?
a. | 144 g | c. | 96 g | b. | 138 g | d. | 78 g |
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25.
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What does the symbol in a chemical
equation mean?
a. | Heat is supplied to the reaction. | c. | yields | b. | A catalyst is
needed. | d. | precipitate |
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26.
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In the chemical equation H O ( aq) ® H O( l)
O ( g), the is a ____.
a. | catalyst | c. | product | b. | solid | d. | reactant |
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27.
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What are the coefficients that will balance the skeleton equation
below? AlCl + NaOH
Al(OH) NaCl
a. | 1, 3, 1, 3 | c. | 1, 1, 1, 3 | b. | 3, 1, 3, 1 | d. | 1, 3, 3, 1 |
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28.
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What are the coefficients that will balance the skeleton equation below?
N + H NH
a. | 1, 1, 2 | c. | 3, 1, 2 | b. | 1, 3, 3 | d. | 1, 3, 2 |
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29.
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When the following equation is balanced, what is the coefficient for HCl?
Mg( s) HCl( aq)
MgCl ( aq) H ( g)
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30.
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When potassium hydroxide and barium chloride react, potassium chloride and
barium hydroxide are formed. The balanced equation for this reaction is ____.
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