I'm pretty sure it's B because carbon atoms are in all living organisms. They can also be bonded in different varations.
Answer:
d
Explanation:
higher no of particles are in CaCl2 solution
Answer: KMnO4-
Explanation:
You're looking at one potassium plus a polyatomic ion.
So K plus MnO4, equals:
KMnO4-
It also has a molar mass of 158.04 g/mol, I don't know if you need that, but I thought it would be nice to include it.