Vocabs Flashcards
1
Q
Process to rearrange atoms into new substances
A
Chemical reaction
2
Q
Uses chemical symbols and numbers to represent substances
A
Chem formula
3
Q
Substances that participate/start a chemical reaction
A
Reactant
4
Q
The substance formed after a reaction
A
Product
5
Q
Mass can not be created or destroyed
A
Law of conservation of mass
6
Q
A reaction that has energy input
A
Endothermic
7
Q
Reaction that has energy output
A
Exothermic
8
Q
Energy cannot be created or destroyed
A
Law of conservation of energy
9
Q
An expression that shows the relationship between reactants and products
A
Chemical equation
