Bianca plans to shine a few spotlights on the sky for Act 2 and use a filter to change the color. Which filter should Bianca use on the white light to make the blue sky appear black?

English , i don't understand spanish.

In reversible reaction chemistry equilibrium is attained when the forward and reverse reactions are taking place at the same rate, thus, the concentrations of reactants and products remain the same. a reversible reaction is a chemical reaction where the reactants form products that, in turn, react together to give the reactants back. in irreversible reactions on the other hand, the reactants react to form the products, which cannot revert back into reactants.

The correct answer should be a.

Seems cool i guess ttyl