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57. MnO4¹ +SO₂ ⇒ Mn²+ + SO4²-

58. MnO4¹ + C₂04² Mn²+ + CO₂
59. CrO4²- + C1¹- ⇒ Cr³+ + Cl₂
60. Cr₂O7²- + S²- → Cr³+ + S​
Please help if you know Balancing Redox.

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Answer:oxidation-reduction

Explanation: Because you eleminate variables.

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