Chemical Reactions Flashcards
1
Q
The process to rearrange atoms into new substances
A
Chemical reactions
2
Q
Chemical symbols + numbers to represent a substance. (H2O)
A
Chemical Formula
3
Q
Expression to show the relationship between reactants and products
A
Chemical equation
4
Q
Substances that participate (start) in a chemical reaction
A
Reactants
5
Q
Substances formed in a chemical reaction
A
Products
6
Q
Mass is not created or destroyed
A
Law of conservation of mass
7
Q
Energy is not created or destroyed
A
Law of conservation of energy
8
Q
Chemical reaction with an input of energy
A
Endothermic
9
Q
Chemical reaction with an output of energy
A
Exothermic
