A student set up an experiment to investigate the law of conservation of mass. The law states that in a chemical reaction, the mass of the products is equal to the mass of the reactants. This is the method that the student followed. Prepare a beaker of lead nitrate solution and label it A. Prepare a beaker of potassium chromate solution and label it B. Measure the mass of both beakers and contents with an accurate and tared balance. Pour the solution from beaker B into beaker A. Immediately measure the mass of both beakers and contents. This is the equation for the reaction which occurs when the solutions are mixed together: Pb(NO3)2(aq) + K2CrO4(aq) ⟶ PbCrO4(s) + 2KNO3(aq) What would the student observe as the reaction takes place?