Question

Write the chemical formulae of the following.
(a)Magnesium chloride
(b)Calcium oxide
(c)Copper nitrate
(d)Aluminium chloride
(e)Calcium carbonate

Answer 1

(i) chemical formulae of Magnesium chloride =$MgCl_2$

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(ii) chemical formulae of Calcium oxide = $CaO$

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(iii) chemical formulae of Copper nitrate = $Cu(NO_3)_2$

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(iv) chemical formulae of Aluminium Chloride = $AICI_3$

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(v) chemical formulae of Calcium carbonate = $CaCO_3$