Calculate the energy needed to melt 3.6 g of ice at 0°C. The molar heat of fusion for ice at 0°C is 6.02 kJ/mol. 1.2 kJ
30 kJ
2.2 kJ
20 kJ
0.6 kJ

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.

Isec i will do it and them i will let you know

The answer to your question is c. mitochondria.