Hg is the symbol of ___________.

Cations are ___________.

Anions are ___________.

Chlorate ion has charge equal to ____________.

Calcium hydroxide contains one atom of calcium, two atoms of hydrogen and ________ atoms of oxygen.

__________ gms of oxygen react with 240gms of magnesium.  (The chemical reaction is  2Mg+O₂→2MgO).

__________ is an example of radical.

 Calcium carbonate reacts with Hydrochloric acid and gives _________ ,water and CO_2..

____________ is the chemical formula of ammonium chloride.

Zinc reacts with HCl to give zinc chloride and ____________.