If a scuba tank filled with oxygen gas at 284k at 800 mmHg is heated to 400 k, what is the new pressure in mmHg

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