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Phys Sci Voc 9 Chemical Rxns part 2

catalyst substance that speeds up a reaction without being changed
inhibitor subtance that slows down a reaction
rate of reaction (speed of reaction) speed at which reactants are consumed and products are made
synthesis reaction two or more substances combine
decomposition reaction one substance breaks down into two or more substances
single replacement reaction one substance replaces another
double replacement reaction two elements switch places
endothermic reaction energy (heat) is needed for the reaction,heat goes in, feels cold
exothermic reaction energy (heat) is given off in the reaction, feels warm
Created by: mrsmcdonough