Water has a higher boiling point than expected because
a. there is so much water vapor in the atmosphere.
b. water molecules are not very massive.
c. hydrogen and oxygen form single covalent bonds.
d. of the strong attractions between polar water molecules

In the 1800s, one of the statements in john dalton's atomic theory was that atoms are indivisible. later experimental evidence led to the discovery of subatomic particles such as neutrons, electrons, and protons. what happened to the indivisible atom part of dalton's atomic theory, and why?

How do you identify the anode on a power source such as a battery? how do you identify the cathode? how are terms anion and cation?

Astudent pours 10.0 g of salt into a container of water and observes the amount of time it takes for the salt to dissolve. she then repeats the process using the same amounts of salt and water but this time she slowly stirs the mixture while it is dissolving. the student performs the experiment one more time but this time she stirs the mixture rapidly. the dependent variable in this experiment is: time for salt to dissolve speed of stirring amount of water mass of salt