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  1. Hades

    Help needed for O' Levels.

    1-You didn't understand the last question:I was asking why steel cores are used. 2-These are more or less of no use to me anymore until the end of 2013 since I gave my chem exam today.Thanks anyways.
  2. Hades

    Help needed for O' Levels.

    Assalamulaikum to all. I have a few questions regarding Chemistry. 1-A short definition of how sulphur is changed into sulphur dioxide.Short as in, 1-1.5 line. 2-State an adverse effect of carbon monoxide on human health if it were to escape from the blast furnace. 3-State an ionic equation for...
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