Which statement describes a chemical reaction at equilibrium? (1) the products are completely consumed in the reaction.
(2) the reactants are completely consumed in the reaction.(3) the concentrations of the products and reactants are equal.(4) the concentrations of the products and reactants are constant.

The statement that describes a chemical reaction at equilibrium is 4) The concentrations of the products and reactants are constant.

Read the sentences below in 1962, i tried to enroll as the first black student at the university of mississippi. the governor of mississippi blocked my entrance which best describes the verbs used in the sentences? o they are past tense verbs, which are often used in narrative essays o they are past tense verbs, which are not often used in narrative essays. o they are future tense verbs, which are often used in narrative essays o they are future tense verbs, which are not often used in narrative essays.