# What type of reactions break substances apart into at least 2 products?

Jan 17, 2017

Decomposition reactions are the separation of a chemical compound into elements or simpler compounds.

#### Explanation:

Decomposition reactions are the separation of a chemical compound into elements or simpler compounds. It is the opposite reaction of synthesis.

The general formula is $A B \to A + B$

E.g. Product of elements:
$2 N a C l \to 2 N a + C {l}_{\text{2}}$
$2 {H}_{\text{2"O -> 2 H_"2" + O_"2}}$
$2 L {i}_{\text{2"O -> 4 Li + O_"2}}$

E.g. Product of compound(s) (and element):
$2 {H}_{\text{2"O_"2" -> 2 H_"2"O + O_"2}}$
${H}_{\text{2"SO_"3" -> H_"2"O + SO_"2}}$
$C a C {O}_{\text{3" -> CaO + CO_"2}}$

Hope this helps :)