Recent content by fiona

  1. F

    Quiz: 2 simple physics questions

    I think Air is not weightless. Every mole or 24 dm3 of air will consist of about Nitrogen-78.1% Oxygen- 20.9% and 1% other gases (with Carbon Dioxide- 0.035%).. Assuming 79% of Nitrogen and 21% of oxygen are present, then each mole of air will weigh 0.79*14 + and 0.21*16= 14.42 g. Its...
  2. F

    who is abigail?

    supposed to be a she. the daughter of an ah ma(granny) in some macdonald's advertisments. i think the granny died already.
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