Q 4.      Write the chemical formulae of the following.

            (a) Magnesium chloride

            (b) Calcium oxide

            (c) Copper nitrate

            (d) Aluminium chloride

            (e) Calcium carbonate

Answers (1)

The chemical formula of Given compounds are :

(a) Magnesium chloride

=MgCl_2

 (b) Calcium oxide

=CaO

(c) Copper nitrate

=Cu(NO_3)_2

(d) Aluminium chloride

=AlCl_3

 (e) Calcium carbonate

=CaCO_3

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