Argon has three main isotopes 0.336 % with a mass of 35.96 amu, 0.063 % at 37.9627 amu, and 99.60 % at 39.96238 amu Calculate the average atomic mass. What is your answer?

The correct answer is c b c a d

Answer is: the equilibrium  shifts toward the reactants, to the left side of chemical reaction.it is because lead(ii) nitrate dissociates in water: pb(no₃)₂ → pb²⁺(aq) + 2no₃⁻(aq).according to lechatelier's principle, the position of equilibrium moves to counteract thechange (more lead cations, common ion), the position of equilibrium will move so that the concentration ofproducts decrease and concentration of reactants of chemical reaction increase.read more on -

Answer/when the cell uses energy;