Answer:
A. coefficients
Explanation:
Balancing the chemical reaction -
As , we know , atoms can not be created and destroyed , hence their is only the transfer of atoms , which take place in a chemical reaction .
Hence , it is important to balance a chemical reaction .
for any reaction , the atoms are balanced by using certain whole number that are placed as a coefficient .
As, is the numbers are placed as superscripts or subscripts, it will alter the chemical structure of the compound .
Hence , the correct answer is A. coefficients .
