Answer :
(1) This reaction is a combustion reaction.
(2) This reaction is a decomposition reaction.
(3) This reaction is a combustion reaction.
(4) This reaction is a combination reaction.
(5) This reaction is a combination reaction.
Explanation :
Combination reaction : It is a type pf reaction in which the two or more molecules combine to form a larger single molecule as a product.
Decomposition reaction : It is a type of reaction in which a single larger compound decomposes to give two or more smaller molecules as a product.
Combustion reaction : It is a type of reaction in which a hydrocarbon molecule react with the oxygen molecule to give carbon dioxide and and water as a product.
1. [tex]C_3H_6(g)+O_2(g)\rightarrow CO_2(g)+H_2O(g)[/tex]
This reaction is a combustion reaction.
2. [tex]NH_4NO_3(s)\rightarrow N_2O(g)+H_2O(l)[/tex]
This reaction is a decomposition reaction.
3. [tex]C_5H_6O(l)+O_2(g)\rightarrow CO_2(g)+H_2O(g)[/tex]
This reaction is a combustion reaction.
4. [tex]N_2(g)+H_2(g)\rightarrow NH_3(g)[/tex]
This reaction is a combination reaction.
5. [tex]K_2O(s)+H_2O(l)\rightarrow KOH(aq)[/tex]
This reaction is a combination reaction.