Give two examples of:
i) Filtration
ii) Chromatography
ii) Crystallization
iv) Centrifugation
Answers
Answer:
1)Brewing coffee involves passing hot water through the ground coffee and a filter.
Air conditioners and many vacuum cleaners use HEPA filters to remove dust and pollen from the air.
2)An example of chromatography is when a chemical reaction is used to cause each of the different size molecules in a liquid compound to separate into their own parts on a piece of paper.
chromatography plays a part in the realms of forensics, food regulation, athlete testing and even quality control in our favourite alcoholic drinks.
3)Stalactite and stalagmite formation.
Gemstone crystal deposition.
4) a centrifuge is used to separate blood cells from plasma cells
Washing machines use centrifugation during the spin cycle to separate water from laundry.
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