Balancing Redox Reactions Video Lessons

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Problem: When this oxidation-reduction equation is the balanced in acidic solution, using only whole number coefficients, what is the coefficient for S(s)? ? Cr2O72- (aq) + ? H2S (aq) → ? Cr3+ (aq) + ? S (s)(A) 4(B) 3(C) 2(D) 1

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When this oxidation-reduction equation is the balanced in acidic solution, using only whole number coefficients, what is the coefficient for S(s)? 

? Cr2O72- (aq) + ? H2S (aq)  ? Cr3+ (aq) + ? S (s)

(A) 4

(B) 3

(C) 2

(D) 1

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