Combustion

Combustion is a chemical reaction in which a substance combines with oxygen when heated.The chemical reaction is caused by heating.It is also a Chemical reaction where some substances react with oxygen in an exothermic reaction.                                                                                                                                                                                      For example, when hydrogen and oxygen are combusted, the end result is water vapor.

Types of Different chemical reactions

Chemical reactions can happen by Electricity,Heating And Light

What happens when Chemical Changes happens?

When chemical changes happen, bonds are broken and new bonds are formed between different atoms. This breaking and forming of bonds takes place when particles of the original materials collide with one another.