Question

What is number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction.
A)Coefficient
B)Subscript
C)
Molecule
D)
Reactant

Answer 1

Coefficient is the number before an equation of a chemical formula

Answer 2

Your answer will be A Coefficient because coefficient means numerical or a constant you would say also its not C because molecules have nothing to do with the question its not B because subscript is usually a writing about something or someone when it came down to rather A, and D I picked A because its a constant in a equation.                                                                                                       Your answer is A.