Question

How do you find the oxidation numbers of these compounds?

1. `Mn(ClO_3)_2`
2. `Fe_2(CrO_4)_3`
3. `Hg_2(BrO_3)_2`
4. `Cr_2(SO_4)_3`

Answer 1

`Mn(II+)`, `Fe(III+)`, `Hg(+I)`, `Cr(III+)`...........

Explanation:

I just used the charge on the compound anions: i.e. `"chlorate, "Cl(V+);` `"chromate, " CrO_4^(2-);` `"bromate, " BrO_3^(-);` `"sulfate, " SO_4^(2-) (S^(VI+));`