A reversible reaction is said to have reached equilibrium when which of the following conditions is established?

The given question is incomplete. The complete question is:

A reversible reaction is said to have reached equilibrium when which of the following conditions is established?

a. concentration of reactants and products are equal

b. opposing reactions cease

c. speeds of opposite reactions become equal

d. temperature of opposite reactions become equal

c. speeds of opposite reactions become equal

Explanation:

Equilibrium state is the state when reactants and products are present but the concentrations does not change with time.The state of equilibrium refers to the dynamic state as both forward and backwad reactions continue.

For a chemical equilibrium reaction, equilibrium state is achieved when the rate of forward reaction becomes equals to rate of the backward reaction.

Thus at chemical equilibrium, the amount of product and reactant remains constant because the rates of the forward and reverse reactions are equal.

in 1783 cavendish was working with his hydrogen gas and found that when he burned it and condensed the vapor it was water. this was very significant since it disproved the greek theory of elements completely since water was not a simple substance but the product of two gases. it was lavoisier who hearing of the experiment gave cavendish's gas the name hydrogen ("water-producer") and added that hydrogen burned by combining with oxygen and that water was a hydrogen-oxygen combination.

explanation: