Reactions And Chemical Reactions Flashcards
1
Q
process to rearrange atoms into new substances
A
Chemical reactions
2
Q
Chemical symbols a numbers to represent a substance
A
Chemical formula
3
Q
expression to show the relationship between reactants and products
A
Chemical equations
4
Q
substances that participate in a reaction (start)
A
Reactants
5
Q
substances formed in a reation (end)
A
Product
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 (photothesis)
A
Endothermic Reaction
9
Q
Reaction with an output of energy (feel heat from burning)
A
Exothermic reaction
