If a solute dissolves in an endothermic process select one: a. hydrogen bonds must exist between solvent and solute. b. strong ion-dipole forces must exist in the solution. c. the solute must be a gas. d. the entropy of the solution is immaterial. e. the entropy of the solution must be greater than that of its pure components.

*tilts head* sounds more like a statement

you need to take a look at the periodic system in order to sort these elements into pairs that would most likely exhibit similar chemical properties. first, you need to find elements that are found in the same group (groups are vertical in the periodic system), and then to see whether they have the same valence number. if they meet these criteria, they will have similar properties.

the first pair: ne (neon) and kr (krypton), are noble gases found in group 8

the second pair: li (lithium) and k (potassium), found in group 1

the third pair: s (sulfur) and te (tellurium), found in group 6