Chemical Reaction Vocab 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 bettueen reactants and products
A
Chemical equation
4
Q
substances that participate in a reaction (start)
A
Reactants
5
Q
substances formed in a reaction (end)
A
Products
6
Q
mass can not be created or destroyed
A
Law of conservation of mass
7
Q
energy can not be created or destroyed
A
Law of conservation of energy
8
Q
reaction with an input of energy (photosynthesis)
A
Endothermic reaction
9
Q
reaction with an output of energy (feel heat from burning)
A
Exothermic reaction