[j22rober]

Balance the following redox reaction:

S  + NO3^-1  --> SO2  + NO

Half Cell reactions:
Oxidation: S --> SO2  + 4e
Reduction: NO3^-1 --> NO +4e

Adding reactions:
S + NO --> SO2  + NO3^-1

Balancing Oxygens:
4H20 + S + NO  --> SO2 + NO3^-1

Balancing Hydrogens:
4H20 + S + NO  --> SO2 + NO3^-1 + 4H+

Is this right?

[AWK]

Not yet.
http://www.chembuddy.com/?left=balancing-stoichiometry&right=balancing-reactions