Question

What is an example of a decomposition reaction?

Answer 1

Hydrogen peroxide to water and oxygen

Explanation:

This is because in order for a decomposition reaction to occur the reactant must break down into 2 or more products.

Answer 2

Thermal decomposition of a carbonate...

Explanation:

A decomposition reaction is when one substance decomposes into another substance, usually two or more.

A common decomposition reaction in industrial chemistry is the thermal decomposition of limestone (calcium carbonate). It can be used to make cement, glass, mortars, and many other things, such as fertilizers for soil.

The general formula for a decomposition of a metal carbonate is:

`"metal carbonate"stackrel("heat")->"metal oxide"+"carbon dioxide"`

or

`XCO_3(s)stackrel(Delta)->XO(s)+CO_2(g)uparrow`

So, the decomposition of calcium carbonate will be

`CaCO_3(s)stackrel(Delta)->CaO(s)+CO_2(g)uparrow`

That is one example of a decomposition reaction.