Posted by **Carter** on Sunday, November 5, 2006 at 8:56pm.

How could you make the reaction Cu(NO3)2 + NaCO3 -- CuCo3+NaNO3 balanced?

You have the formula for sodium carbonate wrong> Na

_{2}CO

_{3}
The carbonate ion is -2 valence, and Na is +1. Now it will balance.

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