# What type of chemical reaction is illustrated by H_2SO_4(aq) ->SO_3(g) + H_2O(l)?

Oct 24, 2016

decomposition

#### Explanation:

In this equation one compound is changed into two compounds
This is an example of a decomposition reaction.

None of the elements change their oxidation numbers.

Hydrogen ${H}^{+ 1}$ remains +1 in Water. ( the products)
Sulfur ${S}^{+ 6}$ remains + 6 in Sulfur trioxide.
Oxygen ${O}^{- 2}$ remains -2 in Oxygen.

Therefore it is not an oxidation reduction reaction.