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  1. A

    I need a Chemistry genius!?

    We dissolved Ferrous Ammonium Sulfate in water to get Iron II.. Then we added Iron II to Sodium Hypochlorite NaOCl (bleach)... We stained a filter paper with coffee and tried to bleach the coffee using it (Sodium Hypochlorite with Iron II), but it didn't bleach well... Now I need to write a lab...
  2. A

    Easy physics question....?

    If you are an observer moving in the same direction as a moving object, what can you say about the relative velocity of the object? Would it make a difference if you were leading or following?
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