it lowers the amout of activation energy needed to start the reaction.
An enzyme
it is broken down to fuel chemical reactions & is created by chemical reactions.
A catalyst lowers the activation energy without being consumed during a reaction
Enzymes reduce the activation energy of a reaction. They accomplish this feat by altering the local chemical environment of the substrates while typically bringing the reactants into close proximity and even stabilizing conformers that promote reaction.
This a normal product in many chemical reactions.
energy is given off or absorbed
Catalysts
all chemical reactions.....they burn and dissolve
Catalysts doesn't undergo a chemical change during a chemical reaction.
Enzymes are not destroyed during chemical reactions.
A single chemical that breaks down into other substances during chemical reactions is "decomposing".
During chemical reactions bonds are broken.