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9th Class Science Atoms and Molecules

  • question_answer 40)
      Give the formulae of the compounds formed from the following sets of elements. (a) Calcium and fluorine                                                (b) Hydrogen and sulphur (c) Nitrogen and hydrogen                                          (d) Carbon and chlorine (e) Sodium and oxygen                                                 (f) Carbon and oxygen

    Answer:

         
    (a) Calcium and fluorine
    (b) Hydrogen and sulphur
    (c) Nitrogen and hydrogen
    (d) Carbon and chlorine
    (e) Sodium and oxygen
    (f) Carbon and oxygen or
     


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