Ch. 2 Sec. 4 Flashcards
0
Q
the substances changed during a chemical reaction.
A
Reactants
1
Q
change substances into different substances by breaking and forming chemical bonds.
A
Chemical Reactions
2
Q
the substances made by a chemical reaction.
A
Products
3
Q
the amount of energy that will break a bond between two atoms.
A
Bond energy
4
Q
reached when both the reactants and products are made at the same rate.
A
Equilibrium
5
Q
the amount of energy that needs to be absorbed for a chemical reaction to start.
A
Activation energy
6
Q
chemical reaction that yields a net release of energy in the form of heat.
A
Exothermic
7
Q
Chemical reaction that requires a net input of energy.
A
Endothermic
