Answer: A. Potential energy in chemical form.
Explanation:
Energy can neither be created nor destroyed but can be transformed from one form to another.
The food we eat contains potential energy in the form of chemicals e. g Carbohydrates, that the body use in carrying out various biological activities.
The answer is catalyst
Answer:
a.5H 2O−15
b.ZnCl 2−3
this is right answer
