As matter changes states of matter does chemical composition stay the same or not

Whether water is frozen, in a gaseous state, or is a liquid, it is still H2O. So the chemical composition does stay the same.

Ans. : frostbite is when exposure to cold temperatures causes freezing to the skin or other tissues. it most commonly affects the hands, feet, and face. the longer areas are exposed to cold, typically the worse the frostbite. the water temperature used for rewarming a frostbitten part should be : (102 -105) f degrees.