Question

A + B → C + D

If there are 4 grams of product produced by the chemical reaction, how many grams of reactant were consumed?
A) 0 grams
B) 1 gram
C) 2 grams
D) 4 grams

Answer 1

D) 4 grams

Step-by-step explanation:

Reactant -> Product

If there are 4 grams of product produced, then there would have had to have been 4 grams of reactant to make it a balanced equation.

Answer 2

I think it's D) four grams were consumed