Chemical Reaction Vocab Flashcards
1
Q
process to rearrange atoms into new substances
A
Chemical reaction
2
Q
Chemical symbols a numbers to represent a substance
A
Chemical formula
3
Q
expression to show the relationship between reactants + 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 conservation of mass
7
Q
energy can not be created or destroyed
A
Conservation of energy
8
Q
Reaction with an input of energy
A
Endothermic
9
Q
Reaction with an output of energy
A
Exothermic reaction
