Define of Molecular formula.
Write the molecular formulae of Magnesium carbonate.
Write the molecular formulae for the following compounds and name the elements present of Sulphuric acid
Write the molecular formula of the following compounds of Iron (II) sulphide and.
Find the number and names of elements present in them and calculate their molecular masses.
Write the molecular formulae for the following compounds and name the elements present of Common salt.
What is variable valency ? Give two examples of elements showing variable valency.
Write the molecular formula for the oxide and sulphide of following elements of Sodium.
Write the molecular formulae of Hydrogen nitrate (nitric acid).
