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

  • question_answer
                                                    Find the ratio by mass of the elements present in molecule of hydrogen sulphide . Given that, atomic mass S = 32, H = 1.

    Answer:

                      H : S (Ratio by mass) 2x1 : 32 or 1 : 16.


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