Stoichiometry, Limiting Reactant, and Molecular Calculations Worksheet Guidance

Based on the particle diagram provided, which of the following best represents the balanced chemical equation for the reaction between AB2 and B2? Assume all reactants and products are in the gaseous state.

In the reaction $2 \text{AB}_2 (g) + \text{B}_2 (g) \rightarrow 2 \text{AB}_3 (g)$, if you start with 3.0 mol of B2 and 5.0 mol of AB2, what is the limiting reactant?

How many moles of AB3 can be formed from 3.0 mol B2 and 5.0 mol AB2 in the reaction $2 \text{AB}_2 (g) + \text{B}_2 (g) \rightarrow 2 \text{AB}_3 (g)$?