🤓 Based on our data, we think this question is relevant for Professor Billman's class at Abilene Christian University.

Solution: When a reaction reaches equilibrium, 1. the rate of the reverse reaction is zero. 2. the rate of the forward reaction and the rate of the reverse reaction are equal to zero. 3. all reaction stops. 4. the rate of the forward reaction is zero. 5. the forward and reverse reaction rates are equal