Moises performs a chemical reaction according to the reaction below. If he started with 15.31 g of copper and 1.50 g of oxygen. Using the Law of Conservation of mass, what would be the mass of the product
be?
2Cu + O2➡️ 2Cu
A. 15.31 g
B. 16.89
C. 13.81 g
D. 1.5gO

Its strengthits conductivity of heat and electricity its shiny colourmalleable and ductility

Molarity is moles of solute over liters of solution. idk if that is what you are talking about, but you can convert moles of solute to grams of solute using dimensional analyzes by using molar mass found on the periodic table.

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 -