Complete and balance the following equations: a) H+ + Cr2O7^2– + Br– → 2Cr^3+ + ? + ?

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asked Oct 10, 2017 in Chemistry by jisu zahaan (28,760 points) 26 374 812
recategorized Oct 10, 2017 by jisu zahaan

Complete and balance the following equations: 

(a) H+ + Cr2O7 2– + Br → 2Cr3+ + ? + ? 

(b) H2O2 + Cl → OH + ? 

(c) Zn + Cu2+ → Zn2+ + ? 

1 Answer

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answered Oct 10, 2017 by sforrest072 (157,439 points) 61 410 939

(a) 14H+ + Cr2O72– + 6Br → 2Cr3+ + 3Br2 + 7H2

(b) H2O2 + 2Cl → 2OH + Cl

(c) Zn + Cu2+ → Zn2+ + Cu.

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