write the formula for the following compounds:a)mercury(2)chloride b)thallium (1)sulphate c)tin(4)oxide d)chromium(3)oxide
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a.HgCl2
d. Cr2O3
c.Sn2O4
b.
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The molecular formulas are .
Hg
Cl
Tl
So4²
Sno2
O
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