Question

name 5 equations and it is oxided or reduction by oxidation number

Answer 1

Mg+S->MgS( Oxidant- Mg; Reductant- S)

HgO -> Hg + O2 (Oxidant- Hg; Reductant- O2)

I2 + H2S -> 2HI+ S (Oxidant-S; Reductant- I)

2CuO + Cu2S -> 6Cu + SO2 (Oxidant-S; Reductant- Cu)

H2 + Cl2->2 HCl (Oxidant- H; Reductant- Cl)