Question

What condition must occur when a chemical reaction is at equilibrium?

The products and reactants are present in equal concentrations.
Neither condition must occur when a chemical reaction is at equilibrium.
Both conditions must occur when a chemical reaction is at equilibrium.
The forward and reverse reactions are happening at equal rates.

Answer 1

Answer: The forward and reverse reactions are happening at equal rates.

Explanation: At the point of equilibrium in a chemical reaction, the rates of the forward and reverse reactions are identical. This means that while both reactions are still occurring, they are happening at the same pace, allowing the concentrations of the reactants and products to stabilize.