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29 Nov 2019

Acidic solution

In acidic solution, the bromate ion can be used to react with anumber of metal ions. One such reaction is

BrO3?(aq)+Sn2+(aq)?Br?(aq)+Sn4+(aq)

Since this reaction takes place in acidic solution, H2O(l) andH+(aq) will be involved in the reaction. Places for these speciesare indicated by the blanks in the following restatement of theequation:

BrO3?(aq)+Sn2+(aq)+ ????Br?(aq)+Sn4+(aq)+ ???

Part A

What are the coefficients of the six species in the balancedequation above? Remember to include H2O(l) and H+(aq) in theappropriate blanks.

Enter the equation coefficients in order separated by commas(e.g., 2,2,1,4,4,3).

________________________________________________________________________________________

Basic solution

Potassium permanganate, KMnO4, is a powerful oxidizing agent.The products of a given redox reaction with the permanganate iondepend on the reaction conditions used. In basic solution, thefollowing equation represents the reaction of this ion with asolution containing sodium sulfite:

MnO4?(aq)+SO32?(aq)?MnO2(s)+SO42?(aq)

Since this reaction takes place in basic solution, H2O(l) andOH?(aq) will be shown in the reaction. Places for these species areindicated by the blanks in the following restatement of theequation:

MnO4?(aq)+SO32?(aq)+ ????MnO2(s)+SO42?(aq)+ ???

Part B

What are the coefficients of the six species in the balancedequation above? Remember to include H2O(l) and OH?(aq) in theblanks where appropriate.

Enter the equation coefficients in order separated by commas(e.g., 2,2,1,4,4,3).

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Deanna Hettinger
Deanna HettingerLv2
17 Dec 2019

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