PLZ HELP
A chemist dissolves an ionic compound in water. The vapor pressure of the solution is . less than the vapor pressure of pure water equal to the vapor pressure of pure water greater than the vapor pressure of pure water

Which statements describe polyatomic ions? check all that apply. polyatomic ions have many charges. polyatomic ions have one overall charge. polyatomic ions repel other ions to form ionic bonds. polyatomic ions attract other ions to form ionic bonds. polyatomic ions are made up of only one type of atom. polyatomic ions are made up of two or more types of atoms.

What does a particular point on a line of a phase diagram represent? o a. the maximum temperature a substance can exist at without bonds breaking b. the pressure created by the kinetic energy of molecules at a particular temperature c. the melting point or boiling point of a substance at a specific pressure d. the conditions in which temperature and pressure have equal effects on a substance

Which of the following represents the ester functional group? a. -coo- b. -cho c. -cooh d. c=o