Whose good at chemistry? xD What mass of Xe is needed to fill a 400 L tank with Xe gas and produce a pressure of 20300 kPa at 25 °C? Assume ideal behavior.

a.) 429.5 kg Xe
b.) 0.4295 g Xe
c.) 900 kg Xe
d.) 429.5 g Xe​

Air can be considered a mixture. which statement does not explain why?

The atom fluorine generally will become stable through the formation of an ionic chemical compound by accepting electron(s) from another atom. this process will fill its outer energy level of electrons.

How many liters of ethylene glycol antifreeze (c2h6o2), with a density of 1.100 g/l, would you add to your car radiator containing 15.0 kg of water if you needed to protect your engine to - 21.5°c? for water, kf = 1.86°c m -1.