Question

correct the text by inserting one comma.
hey that sink is made of porcelain, so you shouldnt be using an abrasive cleaner that might scratch it.

Explanation:

The sentence needs a comma after the interjection "Hey" to set it apart from the main clause, which is a standard grammatical rule for introductory interjections.

Answer:

Hey, that sink is made of porcelain, so you shouldn't be using an abrasive cleaner that might scratch it.