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April 23, 2014

Homework Help: Chem

Posted by Rob on Wednesday, December 12, 2007 at 1:20am.

Manganese dioxide reacts with bromide ions to form manganese ions and bromate ions in an acidic aqueous solution. Write the balanced equation for this reaction.

1)Br- + MnO2 + 3H2O --> Mn2+ + BrO3- + 2H3O+

2)Br- + 3MnO2 + 6H3O+ ---> 3Mn2+ + 9H2O + BrO3-

3)6Br- + MnO2 + 48H2O ---> Mn2+ + 32H3O+ + 6BrO3-

4)4Br- + 3MnO2 + 18H2O ---> 3Mn2+ + 12H3O+ + 4BrO3-

5)Br- + 3MnO2 + 3H3O+ ---> 3Mn2+ + BrO3- + 3H2O

I got the first one. Is that right?

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