The rate at which a substance evaporates is called what?

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.

An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?

Areaction is first order with respect to reactant x and second order with respect to reactant y. which statement describes the rate law for this reaction?