A certain element XX has four isotopes. 4.350% of XX has a mass of 49.94605 amuamu . 83.79% of XX has a mass of 51.94051 amuamu . 9.500% of XX has a mass of 52.94065 amuamu . 2.360% of XX has a mass of 53.93888 amuamu . What is the average atomic mass of element XX

Which functions of water in living systems would still be possible if water was not polar and did not form hydrogen bonds? check all that apply. climate regulation dissolving ionic compounds for biological reactions providing body support by exerting pressure on cell walls providing body support through buoyancy transport of nutrients within organisms temperature regulation in many organisms