Question

Balance the reaction using half reactions under BASIC conditions:

Al + CrO4^-2 ---> Al(OH)3 + Cr(OH)3

I'm not sure how to do this question.
Here is a very good site for redox in general including balancing equations.
Let me know if you have any questions but explain clearly what you don't understand.
http://www.chemteam.info/Redox/Redox.html

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