Chemical Reactions Flashcards
1
Q
Chemical Reaction
A
Process to rearrange atoms into new substances
2
Q
Chemical Formula
A
Chemical symbols and numbers to represent a substance
3
Q
Chemical Equation
A
An expression to show the the relationship between reactants and products
4
Q
Reactants
A
Substances that participate in a reaction (start)
5
Q
Products
A
Substances formed in a reaction (end)
6
Q
Law of conservation of mass
A
Mass cannot be created or destroyed
7
Q
Law of conservation of energy
A
Energy cannot be created or destroyed
8
Q
Endothermic reaction
A
A reaction with an input of energy
9
Q
Exothermic reaction
A
A reaction with an output of energy
