Để trung hoà 2,45g axit cần 2g naoh xác định đương lượng gam của axit cho 0=16,h=1,na=23

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.

There are two molecules. check the attached file for the solution.

The answer would be b