Write the formulae for the following compounds:
Write the formulae for the following compounds:
(a) Mercury(II) chloride (b) Nickel(II) sulphate
(c) Tin(IV) oxide (d) Thallium(I) sulphate
(e) Iron(III) sulphate (f) Chromium(III) oxide
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(a) Mercury (II) chloride: HgCl2
(b) Nickel (II) sulphate: NiSO4
(c) Tin (IV) oxide: SnO2
(d) Thallium (I) sulphate: Tl2SO4
(e) Iron (III) sulphate: Fe2(SO4)3
(f) Chromium (III) oxide: Cr2O3
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