Chemical Reaction Sg/vocab Flashcards
1
Q
process to rearrange atoms into new substances
A
Chemical reactions
2
Q
Chemical symbols + numbers to represent a substance
A
Chemical formula
3
Q
expression to show the relatonship between reactants + products
A
Chemical equation
4
Q
substances that participate in a reacton (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
reachen with an input of energy( photosynthesis)
A
Endothermic reaction
9
Q
reaction with an Output
with
release
of energy heat from burning fire.
A
Exothermic reaction
