Answer: OPTION, D
Explanation:
It is an example for ionic salt and has Calcium ion and sulfate ion.
Hence it's name is Calcium sulfate.
Calcium sulfoxide does not exist.
Calcium sulfite has CaSO3.
Answer: noble gasses
Explanation: zoom on on the red section and look at the key for what red means.
The correct answer to your question is B, solvent.
let me know if you have any further questions
:)
I believe the answer is B!