Which are organic biological molecules? check all that apply. carbohydrates salts proteins lipids metals minerals

Carbohydrates, proteins, and lipids. salts, metals, and minerals are not biological, but can be digested just not produced. hope this helps!! :)

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.