abbreviations for each element. the number of atoms per element. what elements are in each molecule. the chemical reaction that takes place.
I gave my students this multiple choice question: One difference between a chemical formula and a chemical equation is that the chemical equation shows

Only one answer is correct among these 4 choices:
- abbreviations for each element.
- the number of atoms per element.
- what elements are in each molecule.
- the chemical reaction that takes place.

Could you tell me which one is correct?

the chemical reaction that takes place.