chemical
chemical
combustion...
It is a chemical change as it releases gases into the air.
chemical potential energy.
barium nitrate
red food colouring;)
chemical
chemical
chemical
Definitely a chemical change, The elements in the firework undergo very rapid combustion (burning) which is a chemical change.
Use of fireworks is a chemical change.
chlorophyll.
the green pigment chlorophyll.
Chlorophyll is the chemical.It is a photosynthetic pigment.
Yes.
combustion...