Exothermic reactions have net bond energy. A) positive
B) negative
C) neutral

I think it has a negative reaction.

Negative yeahhbb is the answer

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.

The correct answer is "atomic weight".