When you heat up the air inside a hot air ballon, it rises. Why does that occur?

A. The volume of the balloon decreases

B. The mass of cold air displaced by the balloon is less than the mass of hot air inside the balloon

C. The hot air inside the balloon is less dense than the air outside the balloon

D. The hot air inside the balloon becomes denser than the air outside the balloon

Please answer quickly

Tell me the iupac name of the following compounds:

Which of these features are formed when hot groundwater is forced out through cracks in the earth's surface?

Plzz a sample of table sugar (sucrose, c12h22o11) has a mass of 7.801 g. ● a) calculate the number of moles of c12h22o11 in the sample b) calculate the number of moles of each element in c12h22o11 (number of moles of c, number of moles of h & number of moles of o) in the sample. (use your answer from part a as your starting point.) show your work and highlight your final answer. calculate the number of atoms of each element in c12h22o11 (number of atoms of c, number of atoms of h & number of atoms of o) in the sample. (use your answers from part b as your starting for each element.) show your work and highlight your final answer.