9 For items 21 -24, your answer will be the sum of all the numerical coefficients of thereactants and products (use H' instead of H3O')Ex. 2AO + H*-→ 2 H2O +3B2 Answer 2 +1 + 2 +3 =821. Cr20,2 + CI => Cr3+ + Cl2 (Acidic)Question 2222. Cr20,2- + CI → Cr + Cl2 (Basic)23. CN+ AsO4 → AsO2 + CNO (Basic)Question 2424. H2O2 + KMNO4 + H2SO4 → K2SO4 + MNSO4 + H20 + 02(Hint: Make the total number of electrons lost and gained equal by writingappropriate coefficients for both reducing and oxidizing agents. Then, balance the rest ofthe equation by inspection)

For items 21- 24, your answer will be the sum of all the numerical coefficients of the reactants and products (use H' instead of H30") Ex. 2AO + H*- 2 H20 +3B2 Answer 2 +1 + 2+3 =8 21. Cr20,2+ CI => Crt + Cl2 (Acidic) Question 22 22. Cr20,2-+ CI → Cr3* + Cl2 (Basic) 23. CN' + AsO, AsO2 + CNO (Basic)

For items 21- 24, your answer will be the sum of all the numerical coefficients of the reactants and products (use H' instead of H30") Ex. 2AO + H- 2 H20 +3B2 Answer 2 +1 + 2+3 =8 21. Cr20,2+ CI => Crt + Cl2 (Acidic) Question 22 22. Cr20,2-+ CI → Cr3 + Cl2 (Basic) 23. CN' + AsO, AsO2 + CNO (Basic)

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter15: Acid–base Equilibria

Section: Chapter Questions

Problem 7P

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