Write the chemical formulae

Question.

(a) Magnesium chloride

(b) Calcium oxide

(c) Copper nitrate

(d) Aluminium chloride

(e) Calcium carbonate

Solution:

(a) Magnesium chloride: $\quad \mathrm{MgCl}_{2}$

(b) Calcium oxide : $\mathrm{CaO}$

(c) Copper nitrate: $\mathrm{Cu}\left(\mathrm{NO}_{3}\right)_{2}$

(d) Aluminium chloride : $\mathrm{AlCl}_{3}$

(e) Calcium carbonate: $\mathrm{CaCO}_{3}$

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