Question

Combine the following two reactions to obtain a balanced overall redox reaction. Pb2 Mn2+ + Mn5+ + 3e and Pb4+ + 2 e Express your answer as a chemical formula. Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Part C Combine the following two reactions to obtain a balanced overall redox reaction S S ! + 4e and 0+2 e 02 Express your answer as a chemical formula.

Answer 1

B)

To balanced number of electrons, we ned to multiply 1st equation by 2 and end equation by 3

2 Mn²⁺ -> 2 Mn⁵⁺ + 6e^-

3 Pb⁴⁺ + 6e^- -> 3 Pb³⁺

Now combine both equation to obtained overall redox reaction.

2 Mn²⁺ + 3 Pb⁴⁺ -> 2 Mn⁵⁺ + 3 Pb³⁺

C)

To balanced number of electrons, we ned to multiply 1st equation by 1 and end equation by 2

S -> S⁴⁺ + 4e^-

2 O + 4e^- -> 2 O^2-

Now combine both equation to obtained overall redox reaction.

S + 2 O -> S⁴⁺ + 2 O^2-