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    Dan Macmillan

    Student at Utumishi Boys High School in Kilimanjaro

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    Dan Macmillan
    Updated 1 year ago

    Changed his profile picture

    Dan Macmillan
    Updated 1 year ago

    Changed his cover photo

    Tusanagrace Ilomo Posted 2 years ago

    Discussion posted in Chemistry Discussions

    Oxygen

    why is it possible to collect hydrogen gas by pop sound

      0       5
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    Dan MacmillanPhoto
    Dan Macmillan Posted on 1 year ago

    Actually hydrogen is very light compared to other gases .So hydrogen can be collected through down ward delivery or up ward displacement of air.

    Shazma Seif Posted 2 years ago

    Discussion posted in Chemistry Discussions

    Fuels And Energy

    what is fuel & energy

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    Dan MacmillanPhoto
    Dan Macmillan Posted on 1 year ago

    Energy is the ability to do work while fuel is substance which when heated produces heat and light

    Nikusuma David Posted 1 year ago

    Discussion posted in Chemistry Discussions

    Oxygen

    why in the laboratory we use  grass tool beside of plastic tools or iron

     

      5       34
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    Dan MacmillanPhoto
    Dan Macmillan Posted on 1 year ago

    Easy to clean unlike the plastics& also for easy visibility

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