Chemical Reactions-Ch.7: Question Preview (ID: 27779)


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a chemical reaction in which heat energy is released
a) endothermic reaction b) chemical reaction c) exothermic reaction d) activation energy
the minimum amount of energy needed to start a chemical reaction
a) thermal energy b) heat energy c) activation energy d) reaction rate
a shorthand form for writing what reactants are used and what products are formed in a chemical reaction
a) rate of reaction b) chemical equation c) formula d) subscript
a substance that exist before a chemical reaction
a) inhibitors b) enzymes c) products d) reactants
the process that produces chemical change, resulting in new substances with properties that are different from those in the original substances
a) chemical equation b) concentration c) chemical reaction d) rate of reaction
a substance that speeds up a chemical reaction
a) inhibitor b) enzyme c) reactants d) catalyst
a measure of how fast a chemical reaction occurs
a) formula b) rate of reaction c) product d) concentration
a chemical reaction in which heat energy is absorbed
a) chemical reaction b) endothermic reaction c) exothermic reaction d) activation energy
catalysts that are large protein molecules which speed up reactions
a) enzymes b) inhibitors c) reactants d) products
a substance that slows down a chemical reaction
a) product b) catalyst c) enzyme d) inhibitor
describes how much solute is present in a solution compared to solvent
a) concentration b) rate of reaction c) product d) chemical formula
a substance that forms as a result of a chemical reaction
a) enzyme b) reactant c) product d) catalyst
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