Question

What is the chemical composition of soil? (formula like H2O for water)

Answer 1

soil is not a compound it is a mixture. its constituents depend on the type of soil

Answer 2

H2O is the chemical formula of water. It means that each molecule of water is made up of two hydrogen atoms, indicated by the letter H, and a single oxygen atom, represented by the letter O. Water is chemical substance with no smell, taste or color.