Rank from largest mass percent to smallest mass percent: Ammonia, ammonium nitrate, and ammonium hydrogen phosphate

The density of water is 1 g/cm cubed and in order for the pebble to sink its density has to be greater than the density of water and in order for the twig to float its density has to be less than the density of water

False, as a substance changes from a solid to a liquid and from a liquid to a gas the molecules get farther apart from each other

True is ur answer : )

Ametal with a large number of free flowing electrons most likely has good conductivity