Question 1
The following diagrams represent the reaction of A
2 (shaded spheres) with B
2 (unshaded spheres). Identify the limiting reactant and write a balanced equation for the reaction.

◦ A
2 is the limiting reactant; A
2 + 3 B
2 → 2 AB
3.
◦ B
2 is the limiting reactant; A + 3 B → AB
3.
◦ B
2 is the limiting reactant; A
2 + 3 B
2 → 2 AB
3.◦ A
2 is the limiting reactant; A + 3 B → AB
3.
Question 2
The following diagram represents the reaction of A
2 (unshaded spheres) with B (shaded spheres). How many moles of product can be produced from the reaction of 1.0 mol of A
2 and 1.0 mol of B?

◦ 0.5 mol of product
◦ 1.0 mol of product
◦ 6.0 mol of product
◦ 3.0 mol of product