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Chemistry

Grade 12: Rate of reaction

TermDefinition
Reaction rate The change in concentration of reactants or products per unit time.
Catalyst A substance that increases the rate of a chemical reaction without itself undergoing a permanent change.
Heat of reaction (ΔH) The energy absorbed or released in a chemical reaction.
Exothermic reactions Reactions that release energy.
Endothermic reactions Reactions that absorb energy.
Activation energy The minimum energy needed for a reaction to take place.
Activated complex The unstable transition state from reactants to products.
Created by: StiKManLabs
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