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Formation of Complexes

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Question

Write chemical formulas of the following compounds:
(a) Copper (II) sulphate
(b) Calcium fluoride
(c) Aluminium bromide
(d) Zinc sulphate
(e) Ammonium sulphate.

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Solution

$C u S O_{4}$ $copper(II) sulphate$
$C a F_{2}$ $calcium fluoride$
$A l B r_{3}$ $Aluminium bromide$
$Z n S O_{4}$ $zinc sulphate$
$(N H_{4})_{2} S O_{4}$ $ammonium sulphate$

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