Mg + 2HCl MgCl2 + H2 A. If 4.9 g of Mg react with 7.8 g of HCl to produce MgCl2, which is the limiting reagent?

B. If 4.8 g of MgCl2 is produced, what is the percent yield?

Explanation:

data

4.9g of Mg + 7.8g of Hcl — 4.8g of Mgcl

percentage of Mgcl = gram/ molar mass of Mgcl

Rmm of Mgcl = 24 + 81 = 105

4.8g/105*100 = 4.57%

adding or remove a gaseous reactant or product changes the concentrations. if the concentration of reactant or product is increased, the system will shift away from the side in which concentration was increased (i.e. if the concentration of reactants is increased, the system will shift toward the products. if more products are added, the system will shift to form more reactants). conversely, if the concentration of reactant or product is decreased, the system will shift toward the side in which concentration was decreased (i.e. if reactants are removed, the system will shift to form more reactants. if the concentration of products is decreased, the equilibrium will shift toward the products).

explanation:

a boiling water reactor does not boil the water. a pressurized water reactor boils the water faster. a pressurized water reactor is heated directly by the core. a pressurized water reactor does not use fission.