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9th Class Science Atoms and Molecules Question Bank 9th CBSE Science Atoms and Molecules

  • question_answer
      (a) Who gave the law of conservation of mass? (b) State the law of conservation of mass.

    Answer:

           (a) French chemist Antoine Laurent  Lavoisier.     (b) It states that mass can neither be created nor be destroyed in a chemical reaction, i.e., total mass of reactants must be equal to the total mass of the products.  


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