Chemicla Reactions. 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 relatinch p betwen reactants + produces
A
Chemical equations
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 destroyee
A
Law dE Cunsevation 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
