How can you make sure all the water in a hydrated compound has been removed? explain.

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

Astudent is asked to identify and element that is pale yellow brittle solid and does not conduct electricity. at which location in this periodic table would the element most likely be found?

Energy defines the different "states" of matter. in no more than 3 sentences, describe the amount of kinetic energy that each of the 3 states of matter possesses and relate that to the atom/molecular motion of each "state".