Question

"Na2SO3” represents sodium sulfite.

What does the 4 mean in the formula 4Na2SO3?

There are four atoms of sodium.
There are four atoms of sodium sulfite.
There are four molecules of sodium sulfite.
There are four elements in sodium sulfite.

Answer 1

There are four molecules of sodium sulfite.

Step-by-step explanation:

Answer 2

There are four molecules of sodium sulfite.

Explanation: I have answered this question before