Chemical Reactions Flashcards
1
Q
Process to rearrange atoms into new substances
A
Chemical reaction
2
Q
Chemical symbols and numbers to represent a substance
A
Chemical formula
3
Q
Expression to show the relationship between reactants and products
A
Chemical equation
4
Q
Substances that participate in a reaction
A
Reactant
5
Q
Substances formed in a reaction
A
Products
6
Q
Mass can’t be created or destroyed
A
Law of conservation of mass
7
Q
Energy can’t be created or destroyed
A
Law of conservation of energy
8
Q
Input of energy
A
Endothermic reaction
9
Q
Output of energy
A
Exothermic reaction
