Some elements and their valencies are given
Write the chemical formula of barium chloride
.

Some elements and their valencies are given Write the chemical formula of zinc oxide .

write the chemical formula of oleum?

Some elements and their valencies are given The chemical formula of calcium oxide is CaO . What is the valency of calcium? .

The chemical formula of Plaster of Paris is

Give the chemical formula of dolomite and carnallite?

The atomic number of four elements are given below. Write the chemical formula of the compound formed by two elements other than inert gases.