The following pictures represent the initial state and the equilibrium state for the gaseous state reaction of A 2 molecules (shaded spheres)with B atoms (unshaded spheres)to give AB molecules.
-What is the best balanced chemical equation for the reaction?

Question

The following pictures represent the initial state and the equilibrium state for the gaseous state reaction of A 2 molecules (shaded spheres)with B atoms (unshaded spheres)to give AB molecules. 
-What is the best balanced chemical equation for the reaction?

Quizplus · Accepted Answer

The initial state shows A₂ molecules and B atoms, while the equilibrium state shows the formation of AB molecules. This indicates a simple reaction between one molecule of A₂ and two atoms of B to form two molecules of AB. Therefore, the balanced chemical equation for the reaction is: A₂ + 2B ⇌ 2AB. Choice C represents this equation.

The Following Pictures Represent the Initial State and the Equilibrium