CHEMISTRY [2 Mark Question Answer]

2H = It represents two molecules of hydrogen element.
O2 = It represents two atoms of Oxygen.
4H2O = It represents 4 molecules of water.
CuSo4 = It represents one molecule of copper sulphate.

Four important properties of non-metals
Non-metals are brittle in nature.
They are Not Ductile.
They are generally bad conductors of Heat and Electricity.
They may be Solid, Liquid or Gases at the Room Temperature.

Four important properties of metals.
They have high melting points.
They are good conductors of heat electricity.
They have high density.
They are ductile and malleable.