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Enzymes
________: catalysts for chemical reactions in living things.
Equilibrium
________ is reached when both the reactants and products are made at the same rate.
chemical reaction
A catalyst will increase the speed of a(n) ________ as it gives it a "push.
Reactants
________: The substances that changed during a chemical reaction.
Substrates
________: The only reactants that a certain enzyme will act on.
Catalyst
________: a substance that decreases the activation energy needed to start a chemical reaction.
Chemical equilibrium
________: When a reaction takes place at an equal rate in both directions.
Chemical equations
________ show what happens during a reaction.
Energy
________ that is released is given off as heat or light.
chemical bonds
If energy is added to reactants, ________ are broken.
Enzymes
________ will bring the substrates together and act as a catalyst so the product can be formed easier.
chemical reactions
All ________ have changes in energy.
Energy
________ that is absorbed can come from ________ sources like the sun.
Chemical reactions
reactions that change substances into substances by breaking and forming chemical bonds
Reactants
The substances that changed during a chemical reaction
Products
The substances made by a chemical reaction
Bond energy
the amount of energy that will break a bond between two atoms
Chemical equilibrium
When a reaction takes place at an equal rate in both directions
Activation energy
the amount of energy that needs to be absorbed for a chemical reaction to start
Exothermic chemical reaction
Reaction that releases more energy than it absorbs
Endothermic chemical reaction
Reaction that absorbs more energy than it releases
Catalyst
a substance that decreases the activation energy needed to start a chemical reaction
Enzymes
catalysts for chemical reactions in living things
Substrates
The only reactants that a certain enzyme will act on
Note 
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