Define law of conservation of mass and write an experiment to prove it .
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Given Alka-Seltzer and a flask, students design and conduct an experiment to prove the Law of Conservation of Mass. The law of conservation of mass indicates that mass cannot be created nor destroyed. This means the total mass of reactants in a chemical reaction will equal the total mass of the products.
Take copper sulphate solution and dissolve it in water in a conical flask. ... Put cork on the mouth of the flask so that reactants and products do not spill out of flask. The mass of flask and its contents remain the same before as well as after the reaction that proves the law of conservation of mass
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