Answer
Please see the work below.
Work Step by Step
We know that industrially sodium chloride is electrolyzed to from chlorine gas. The chlorine gas is heated with sodium hydroxide which forms $NaClO_3$ and $NaCl$.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.