C. is the answer. i know because i had this question not that long ago.
C the number of protons an neutrons
Answer: To show the number of atoms present.
Explanation: As in CO² (Carbon dioxide), there is a small 2 next to the symbol "O" (oxygen) to explain that there are two oxygen atoms.
Your answer would be 0.024951344877489 but rounding it would be 0.025 moles
Answer: excess
Explanation: i guesses and got the answer right
