Zinc reacts with HCl to give zinc chloride and ____________.
CO2 contains one atom of carbon and two atoms of oxygen, the atomic weight of carbon is 12 and the atomic weight of oxygen is 16. The molecular weight of CO2 is
__________ gms of oxygen react with 240gms of magnesium. (The chemical reaction is 2Mg+O2→2MgO).
Hg is the symbol of ___________.
__________ is a tetravalent radical.
Calcium carbonate reacts with Hydrochloric acid and gives _________ ,water and CO2..
____________ exists as a diatomic molecule .
Cations are ___________.
'H2' stands for a molecule of hydrogen consisting of __________ hydrogen atoms.
Magnesium reacts with oxygen and forms____________.