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A(n) ______________________________ is a chemical reaction that requires heat.
enzyme
reactant
Chemical energy
decomposition reaction
chemical equation
endothermic reaction
synthesis reaction
exothermic reaction
A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products is called a(n) _________________________.
enzyme
reactant
Chemical energy
decomposition reaction
chemical equation
endothermic reaction
synthesis reaction
exothermic reaction
_________________________ is the energy released when a chemical compound reacts to produce new compounds.
enzyme
reactant
Chemical energy
decomposition reaction
chemical equation
endothermic reaction
synthesis reaction
exothermic reaction
A(n) ______________________________ is a chemical reaction in which heat is released to the surroundings.
enzyme
reactant
Chemical energy
decomposition reaction
chemical equation
endothermic reaction
synthesis reaction
exothermic reaction
A substance or molecule that participates in a chemical reaction is called a(n) ______________________________.
enzyme
reactant
Chemical energy
decomposition reaction
chemical equation
endothermic reaction
synthesis reaction
exothermic reaction
A type of protein that speeds up metabolic reactions in plants and animals without being permanently changed or destroyed is called a(n) ______________________________.
enzyme
reactant
Chemical energy
decomposition reaction
chemical equation
endothermic reaction
synthesis reaction
exothermic reaction
A reaction in which a single compound breaks down to form two or more simpler substances is called a(n) ______________________________.
enzyme
reactant
Chemical energy
decomposition reaction
chemical equation
endothermic reaction
synthesis reaction
exothermic reaction
A reaction in which two or more substances combine to form a new compound is called a(n) ______________________________.
enzyme
reactant
Chemical energy
decomposition reaction
chemical equation
endothermic reaction
synthesis reaction
exothermic reaction
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