which prefix is needed when naming so₃?\no tri-\no penta-\no mono-\no di-
which prefix is needed when naming so₃?\no tri-\no penta-\no mono-\no di-
Answer
Brief Explanations:
In naming covalent compounds, the prefix indicates the number of atoms of an element. In $SO_3$, there are 3 oxygen atoms. The prefix for 3 is "tri -".
Answer:
A. tri-