Students put a ballon on a top of a bottle of water. The students placed the bottle in a container of very hot water and the ballon began to expand. A) All of the water evaporated B) The gas in the bottle expanded as it became warmer C) Some of the gas in the bottle condensed to liquid water D) the water expanded into the ballon as it became warmer

Explain which group an element with the electron configuration 1s2 2s2 2p6 3s2 3p6 3d1 4s2 belongs to.

What is the mass defect of a mole of nuclei with 1.8 x 10^15 j/mol binding energy?

The boiling point of propanoic acid is higher than that of 1-butanol because: propanoic acid has a higher molecular weight than 1-butanol. propanoic acid is more soluble in water than 1-butanol. propanoic acid is a better hydrogen bond donor than 1-butanol. propanoic acid forms hydrogen bonded dimers and 1-butanol does not. 1-butanol forms hydrogen bonded dimers and propanoic acid does not.