Question

Explain how the formation of compound like MgCL2 and CaO take place

Answer 1

Answer:

Explanation:

Compounds like MgCl2 are salts. They can be prepared by the 'neutralisation reaction'...where we need to add an acid and a base to get a salt and water.

Taking the example of MgCl2 :

MgO + 2HCl(dil.) = MgCl2 + H20, where,

MgO is a base, HCl is an acid.

CaO is a base. They can be prepared by the hydrolysis of salts...which is actually the opposite of neutralisation reactions.

Taking the example of CaO :

CaCl2 + H20 = CaO + 2HCl, where,

CaCl2 is a salt.

Hope this helps you!