Chemistry
Write the molecular formulae for the oxides and sulphides of the following elements.
(a) Sodium
(b) Calcium
(c) Hydrogen
Related Questions
Write the molecular formulae for the following compounds and name the elements present.
(a) Sodium bicarbonate
(b) Sodium chloride
(c) Sulphuric acid
(d) Nitric acid
The valency of aluminium is 3. Write the valency of other radicals present in the following compounds. Also name the compounds
(a) AlCl3
(b) Al2O3
(c) AlN
(d) Al2(SO4)3
Define:
(a) Symbol
(b) Molecular formula
(c) Radical
(d) Valency
Differentiate between Reactants and Products.