2. A sample of iron weighing 6.50 g (specific heat = 0.449 J/gºC) is colled from 25.3°C to -68.7°C. How much heat was transferred? (Be sure to include the sign).

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.

Nonmetal are moldable and easily shaped

Answer( precipitate );

Visible light is located in the middle of the spectrum.