Catalysts speed up the rate of reaction, but they do not alter the position of equilibrium of a reaction. If without the catalyst your reaction would go to completion(all to products), even if very slowly, then yes, in the presence of catalysts, the reactants will all be turned into products.

Which catalyst accelerates the speed of reaction?

Enzymes, like other catalysts, accelerate specific reactions by decreasing the activation energy ΔG^‡.

What accelerates a reaction?

A chemical reaction can be sped up by many factors. ... Add a catalyst (A substance that reduces activation energy, speeding up the reaction) Increase the concentration of reactants. Increase the concentration of catalysts.