\na₂so₃\ represents sodium sulfite. what does the 4 mean in the formula 4na₂so₃? there are four atoms of…

\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.

\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

Brief Explanations:

In chemical formulas, a coefficient in front of a compound formula indicates the number of molecules of that compound. Here, $4$ in $4Na_2SO_3$ means there are four molecules of sodium sulfite. Sodium sulfite ($Na_2SO_3$) is a compound, not an atom, and the number of sodium atoms in one $Na_2SO_3$ is 2, not 4. Also, sodium sulfite has 3 elements (sodium, sulfur, oxygen), not 4.

Answer:

There are four molecules of sodium sulfite.