Wednesday, January 20, 2010

December 15 Chemistry 11


Today in Chemistry 11 we started our new unit on chemical reactions Mr.Doktor showed us some chemical reactions today. First he started out by by adding bromothemal blue and hydrochloric acid which turned to a yellow color. Then he added ammonia to the acid and it turned blue. After Mr Doktor mixed potassium iodide with iron iodide and it made the solution turn yellow. Mr.Doktor then showed us another chemical reaction by burning a strip of magnesium which made a very bright light and he told us this is how they started fire works. His last chemical reaction was he dipped ap iece of paper in alcohol and lit the paper on fire, the paper did not set on fire at all but instead the alcohol was burning.

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