Determine the oxidation state of the elements: Li2O H2S HgO MgCl HO

Li2o -Li(+1), O(2-)
H2S- H(1+), S(2-)
HgO- Hg(2+), O(2-)
MgCl2- Mg( 2+), Cl(1-)
H2O – H(1+), O(2-)



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