Question

Explain the following type of chemical reaction, giving two examples for it:

Combination reaction

Answer 1

A combination reaction is a reaction in which two or more substances combine to form a single substance.
Examples:

1. When iron and sulphur are heated together, they combine to form iron sulphide.
   $$\mathrm{Fe}+\mathrm{S}\stackrel{\mathrm{heat}}{\to }\mathrm{FeS}$$
2. When carbon burns in oxygen, it forms a gaseous compound called carbon dioxide.
   $$\mathrm{C}+\mathrm{O}{\phantom{A}}_2\stackrel{\mathrm{heat}}{\to }\mathrm{CO}{\phantom{A}}_2+\mathrm{Heat}$$