How do chemical changes occur? Flashcards
1
Q
Mixing
A
two/more reactants are mixed together & combine to form 1/more products=>chemical change
2
Q
Heating
A
heat/ increase in temp is needed for a chemical change to occur eg combustion
3
Q
exposure to light
A
photosynthesis
4
Q
Interaction with O2
A
respiration/rusting
5
Q
How do chemical changes occur?
A
-Mixing
-Heating
-Exposure to light
-Interaction with O2
