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When a catalyst is added to a system at equilibrium, a decrease occurs in the
activation energy
heat
This change exposes more reactant particles to a possible collision
exothermic
particles at higher temperatures collide more often and have more energy
activation energy
increased concentration of product
inhibitor
Which statement explains why the speed of some chemical reactions is increased when the surface area of the reactant is increased?
activation energy
heat
This change exposes more reactant particles to a possible collision
exothermic
particles at higher temperatures collide more often and have more energy
activation energy
increased concentration of product
inhibitor
Both endothermic and exothermic reactions need _________________ to get started
activation energy
heat
This change exposes more reactant particles to a possible collision
exothermic
particles at higher temperatures collide more often and have more energy
activation energy
increased concentration of product
inhibitor
Most endothermic reactions require a continuous source of
activation energy
heat
This change exposes more reactant particles to a possible collision
exothermic
particles at higher temperatures collide more often and have more energy
activation energy
increased concentration of product
inhibitor
In what ways can temperature increase the rate of a chemical reaction?
activation energy
heat
This change exposes more reactant particles to a possible collision
exothermic
particles at higher temperatures collide more often and have more energy
activation energy
increased concentration of product
inhibitor
In what type of reaction do the reactants have more energy than the products?
activation energy
heat
This change exposes more reactant particles to a possible collision
exothermic
particles at higher temperatures collide more often and have more energy
activation energy
increased concentration of product
inhibitor
Which condition will decrease the rate of chemical reaction?
activation energy
heat
This change exposes more reactant particles to a possible collision
exothermic
particles at higher temperatures collide more often and have more energy
activation energy
increased concentration of product
inhibitor
A material that prevents reactants from coming together is called a
activation energy
heat
This change exposes more reactant particles to a possible collision
exothermic
particles at higher temperatures collide more often and have more energy
activation energy
increased concentration of product
inhibitor
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