What type of bonds are formed in N2O4?

The identities of substances are the same before and after which type of change

The biosphere of the earth is made up of what compound? organic or inorganic?

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.