Pls! answer all of it. idk if what i wrote is correct.

Consider the following reaction at equilibrium. 2co2 (g) 2co (g) + o2 (g) h° = -514 kj le châtelier's principle predicts that the equilibrium partial pressure of co (g) can be maximized by carrying out the reaction a. at high temperature and high pressure b. at high temperature and low pressure c. at low temperature and low pressure d. at low temperature and high pressure e. in the presence of solid carbon

How many grams of magnesium metal will react completely with 8.3 liters of 5.5m hcl? show all work

Areaction in which products can react to re-form reactants is