Determine the valence of the acid residues of the following acids: 1. H2S 2. HBr 3. HNO3 4. HMnO4 5.H3PO4 6. HSO4

1) in Н2S the valency S is equal to two.
2) in HBr, the valence of Br is equal to one.
3) in HNO3, the valence of -NO3 is equal to one.
4) in НMnO4, the valence of -MO4 is equal to one.
5) in H3PO4, the valence of -PO4 is three.
6) in H2SO4 the valence of -SO4 is two.



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