Determine the valence of the acid residues of the following acids h2s hbr hno3 h2co3 hmno4 h3po4 h2so4

1) H2S – hydrosulfuric acid, acid residue S2-, divalent.

2) HBr – hydrobromic acid, acid residue Br-, monovalent.

3) HNO3 – nitric acid, acid residue NO3-, monovalent.

4) H2CO3 – carbonic acid, acidic residue CO3 / 2-, bivalent.

5) HMnO4 – manganic acid, acid residue MnO4, monovalent.

6) H3PO4 – phosphoric acid, acid residue PO4 / 3-, trivalent.

7) H2SO4 – sulfuric acid, acid residue SO4 / 2-, bivalent.



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