Balance the following equation in basic solution. indicate which reactant become

Question

Balance the following equation in basic solution. indicate which reactant becomes oxidized during the reaction, which reactant becomes reduced, which is the oxidizing agent, and which is the reducing agent. IO3- +NO2- ---> I- +NO3-

Explanation / Answer

Lose Electrons --> Oxidize Gain Electrons --> Reduce What is being oxidized is the reducing agent What is being reduced is the oxidizing agent First see what is gaining electrons (which ion is becoming more negative?) Then see what is losing electrons (which ion is becoming more positive?) Use oxidation numbers to help! **************************************… In this case, NO3- --> NO2 is reduction and I2 going to IO3 is oxidation. The half reaction for the reduction is: NO3- --> NO2 + 2 electrons The half reaction for the oxidation is: I2 + 6e- --> IO3

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