Question

Write the formulae for the following compounds:

Mercury(II) chloride

Nickel(II) sulphate

Tin(IV) oxide

Thallium(I) sulphate

Iron(III) sulphate

Chromium(III) oxide

Answer 1

Mercury (II) chloride:
$HgC{l}_2$

Nickel (II) sulphate
$NiS{O}_4$

Tin(IV) oxide
$Sn{O}_2$

Thallium(I) sulphate
$T{l}_{2}S{O}_4$

Iron(III) sulphate
$F{e}_2(S{O}_4{)}_3$

Chromium(III) oxide Answer
$C{r}_2{O}_3$