Answer:
A chemical reaction is a process where bonds are formed between reactant elements causing interaction hence products are formed.
The two types of chemical reaction:
[tex]{ \boxed{ { \rm{ \bold{ \dashrightarrow \: reversible \: reaction}}}}}[/tex]
This is a reaction where reactants interact chemically to form respective products and also products can react to reverse the reaction (to form reactants).
An example of reaction of hydrogen and oxygen:
[tex]{ \rm{2H_{2(aq)} +O_{2(aq)} \: {}{ ^{ \dashrightarrow}_{ \dashleftarrow} \: 2H _{2}O _{(l)} }}}[/tex]
[tex]{ \boxed{ \rm{ \bold{ \dashrightarrow irreversible \: reaction}}}}[/tex]
It is a one way reaction, cannot be reversed
[tex]{ \rm{Mg_{(s)} + N _{2(g) \: }\rightarrow \: \: Mg _{3} N _{2(s)} }}[/tex]