Question

What is the coefficient?

A. A whole number that appears in front of a compound or element in a balanced chemical equation.
B. A whole number that appears as a subscript in front of a formula in a balanced chemical equation
C. A whole number that appears as a subscript at the end of a formula in a balanced chemical equation.
D. A whole number that appears as a subscript at the end of a formula in a balanced chemical equation

Answer 1

A. A whole number that appears in front of a compound or element in a balanced chemical equation.

Step-by-step explanation:

That's the definition of a coefficient.

B, C, and D are wrong. Subscripts are not coefficients.