A 4.4 grams sample of a hydrate was heated until the water of hydration was driven off. The anhydrous compound remaining had a mass of 3.3 GM what is the percentage by mass of water in hydrate

They are like other investigations? say there was a murder u have to do blood test and finger prints which run through a lab. 

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.

Ithink that the use of creativity in the sciences entails that one produce something out of nothing or from another thing. with this, i think that the he wrote down his results as four parts of the atomic theory is the manifestation of the  creativity of john dalton.