Balance cr2o72- + so2 gives cr3+ + so42-
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The reaction we are given here to 2 Balance Cr₂O7²- + SO₂ gives cr_{3}+ + SO² is basically an example or a type of redox reaction.
In other words we can say there are two types of half reactions that has been taking place in the above given reaction one that has oxidation happening in it and other half has reduction happening in it.
So the two reactions to balance the equation would be
Cr₂O7²- + 14H₂O + 6e¯ → 2Cr3 + +7H₂O + 140H
3SO3²− + 3H – 20+6OH¯ →3S0² + 2 6H₂O + 6e¯
Show the final balanced
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