Which way will equilibrium shift if more H2 is added?

Answer 1

Assuming we are talking about a reaction where hydrogen gas (H2) is involved, if more H2 is added, the equilibrium will shift towards the product side to compensate for the increased concentration of reactants. This is according to Le Chatelier's principle, which states that if a system at equilibrium is subjected to a stress, the system will adjust itself to counteract the stress and reestablish equilibrium.