2 7.2.4 Quiz: Melting and Boiling Question 7 of 10
What is a vapor?
O A. A substance that is always in the solid or liquid phase at room
temperature
B. A substance that forms a gas, but only at very high temperatures
C. A substance that is in the gas phase at a temperature at which it
would normally be a solid or liquid
O D. A substance that has a much higher melting point and boiling
point than other similar substances
SUBMIT