Chemistry, 25.02.2020 22:26 tonya3498

Complete and balance each of the following half-reactions (steps 2–5 in half-reaction method):

(a) Cr2+(aq)⟶Cr3+(aq)
(b) Hg(l)+Br−(aq)⟶HgBr42−(aq)
(c) ZnS(s)⟶Zn(s)+S2−(aq)
(d) H2(g)⟶H2O(l (in basic solution)
(e) H2(g)⟶H3O+(aq) (in acidic solution)
(f) NO3−(aq)⟶HNO2(aq) (in acidic solution)
(g) MnO2(s)⟶MnO4−(aq) (in basic solution)
(h) Cl−(aq)⟶ClO3−(aq) (in acidic solution)

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Complete and balance each of the following half-reactions (steps 2–5 in half-reaction method):