Unit 6 Chemical Reactions: Question Preview (ID: 28083)


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A substance or molecule that participates in a chemical reaction.
a) Coefficient b) Reactant c) Product d) Catalyst
A substance that forms in a chemical reaction.
a) Coefficient b) Reactant c) Product d) Catalyst
Amount of a product actually obtained from a given reaction.
a) Concentration b) Coefficient c) Solubility d) Yield
A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products.
a) Chemical Equation b) Formula c) Catalyst d) Coefficient
a number that is used to measure some property or characteristic of a substance. Ex, 4X. 4 is the coefficient.
a) Chemical Equation b) Formula c) Catalyst d) Coefficient
a number that is used to measure some property or characteristic of a substance. Ex, 4X. 4 is the coefficient.
a) Conservation of Energy b) Conservation of Mass c) d)
Reaction in which two or more substances combine to form a new compound.
a) Synthesis b) Decomposition c) Single Displacement d) Double Displacement
A reaction in which a single compound breaks down to form two or more simpler substances.
a) Synthesis b) Decomposition c) Single Displacement d) Double Displacement
A reaction in which one element takes the place of another element in a compound.
a) Synthesis b) Decomposition c) Single Displacement d) Double Displacement
A reaction in which a gas, a solid, or a molecular compound forms from the exchange of ions between two compounds.
a) Synthesis b) Decomposition c) Single Displacement d) Double Displacement
A chemical reaction in which heat is released to the surroundings.
a) Endothermic b) Exothermic c) d)
A substance that changes the rate of a chemical reaction without being used up or changed very much.
a) Endothermic b) Inhibitor c) Catalyst d) Exothermic
A substance that slows down or stops a chemical reaction.
a) Endothermic b) Inhibitor c) Catalyst d) Exothermic
Any compound that increases the number of hydronium ions when dissolved in water.
a) Catalyst b) Inhibitor c) Acid d) Base
Any compound that increases the number of hydroxide ions when dissolved in water.
a) Catalyst b) Inhibitor c) Acid d) Base
A value that is used to express the acidity or basicity of a system; measure of hydronium ion concentration.
a) Buffer b) Acid c) Base d) pH
The reaction of an acid and a base to form a neutral solution of water and salt
a) Synthesis b) Decomposition c) Single Displacement d) Neutralization
a solution that can maintain a nearly constant pH if it is diluted, or if relatively small amounts of strong acids or bases are added. Buffer solutions resist pH changes.
a) Acid b) Base c) Buffer d) Catalyst
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