The boiling point of water is 100.0°C at 1 atmosphere. How many grams of ammonium nitrate (80.06 g/mol), must be dissolved in 283.0 grams of water to raise the boiling point by
0.350°C? Refer to the table for the necessary boiling or freezing point constant.

Aphysical change is one that you can put in and remove like a ham sandwich. the stuff you put in there can be changem its not permanet. a chemical change is on that can't be change thats permanet. like when you make a cake and bake it. you can't get those ingredients back.