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Topics 1 and 4 in the Prentice Hall Review Book
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KEY- page 2 in packet. My type of Mixture Activity. CW on 9/28-9/29
Page 2 of matter worksheet packet
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Phases of Matter VideoPhysical and Chemical Changes VideoThe below image shows the reaction of aluminum foil in copper (II) chloride solution. Note the appearance of the colored solution layers. Where the reaction is complete you see the new brown solid (copper) is floating in the aluminum chloride (colorless) solution. At the bottom layer you see the left over original blue copper chloride solution that has not reacted.
The observed signs of a chemical change for this reaction include a color change in both the solution and solid produced (silver solid vanishes and forms a brown solid; the blue solution becomes clear). There was also gas produced (as seen by bubbles forming on the foil during the first few minutes of the reaction) Mixture Separation Techniques- Chromatography: Chromatography of black ink using a tissue paper (separating black ink into its constituent colours) - YouTube
- Magnetic Separation: Cool Experiment Sand, Magnet & Iron filings - YouTube
- Filtration: https://www.youtube.com/watch?v=2HqZpx_CjmY
- Distillation: https://www.youtube.com/watch?v=0IWy_hdgKJM
