Which of these scenarios involve a reaction that is at equilibrium
a reaction is producing more products than reactants.
b the reaction is only producing proucts.
c the reaction is producing more reactants than products.
d the reactive is producing reactants and products at an equal rate.

The answer is "The reaction is producing reactants and products at an equal rate"

a small container that holds a source of energy a solar cell that captures light energy and converts it into electricity a voltaic cell that uses the oxidation of a fuel to produce electricity

explanation: