Question

List an example of a fast chemical change, a
chemical change accompanied by change in
colour and a chemical change accompanied
by release of heat.​

Answer 1

Answer:

a fast chemical change is burning paper

Answer 2

Answer:

An example of a chemical change is the reaction between sodium and water to produce sodium hydroxide and hydrogen. So much energy is released that the hydrogen gas released spontaneously burns in the air.

Explanation:

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