Since Solubility is defined as the amount of solute that dissolves in 100 grams of water when you take 10 grams of salt and disslove it in 25 grams of hot water the solubility is /100g H20.

How are isotopes of the same chemical element alike? how are they different?

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.

In chemistry, the type of an atom (what element it is) is determined by: a) the number of protons it contains in its nucleus.b) the number of neutrons it contains in its nucleus.c) the number of protons it has in a cloud around the nucleus.d) the number of neutrons it has in a cloud around the nucleus.e) the number of electrons it exchanges with its neighbors.