Asked by Sarah
Balance the redox equation by oxidation number method:
Cr2O7 2- + Br- + H+ = Cr 3+ + Br + H2O
Please help!
Cr2O7 2- + Br- + H+ = Cr 3+ + Br + H2O
Please help!
Answers
Answered by
DrBob222
What's the trouble.
Cr goes from +6 for EACH Cr atom to +3. Br goes from -1 to 0.
Here is a site that tells you how to do it but I can help if you identify the problem.
http://www.chemteam.info/Redox/Redox.html
Cr goes from +6 for EACH Cr atom to +3. Br goes from -1 to 0.
Here is a site that tells you how to do it but I can help if you identify the problem.
http://www.chemteam.info/Redox/Redox.html
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