Question

which of these is a condition for dynamic equilibrium? the reaction must be reversible (can go forward and backward). the concentration of reactants must equal the concentration of the products. the reaction must stop reacting when concentrations stop changing.

Explanation:

To determine the condition for dynamic equilibrium, we analyze each option:

1. For dynamic equilibrium, a reaction must be reversible (able to proceed in both forward and reverse directions) so that the rate of the forward reaction equals the rate of the reverse reaction.
2. The concentration of reactants and products do not have to be equal at equilibrium, just constant.
3. In dynamic equilibrium, the reaction does not stop; the forward and reverse reactions continue at equal rates, so concentrations remain constant.

So the correct condition is that the reaction must be reversible.

Answer:

The reaction must be reversible (can go forward and backward).