The answer is ....... 47/10^8
CO2(s) is a solid.
CO2(g) means it is gas.
So they differ in their physical properties.
Physical propertiers means that they differ in their look.
D. There is one atom of sulfur and three atoms of oxygen.
The "tri" in trioxide indicates three so there are three atoms of oxygen. As nothing is said about the sulfur, there is just one atom.
Hope this helps!!
