Which is the closest antonym for the word prone?

You have a liquid that exhibits diltancy. you want to pour it from a bottle. what should you do to the bottle before pouring

Mercury turns to a vapor at 629.88 k. how much heat is lost when 75.0 g of mercury vapor at 650 k condenses to a liquid at 297 k?

An object of mass 10.0 kg and volume 1000 ml and density 10 g/ml sinks in water who’s density is 1.0 g/ml. what is the mass of the water which has been displaced in kilograms