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Describe a method that could be used to separate the components of the following a) Sand and iron filings b) Sawdust and lead pellets c) Salt and glass particles d) Silt (water and fine soil particles) e) Alcohol and water 2. Dissolve a tablespoon of sugar in a saucepan containing about 3 cm of water. Put at least 6 ice cubes in another clean and dry saucepan. Heat the first saucepan, and when the water comes to a rolling boil, hold the second saucepan tilted over the escaping water vapour, after having placed a third container (preferably a glass) underneath it, as shown in the diagram. Do this until a few drops of liquid are deposited in the glass. a) Note everything you observe during the heating process. b) Taste the liquid that has been deposited in the glass and note your observations. c) What do you call the process you?ve just observed? d) Explain what happened during the process.
What volume of oxygen would be required to burn completely 200 ml of acetylene and what would be the volume of carbon dioxide formed?
Sedatives: Sedatives act as depressant and suppress the activities of central nervous scheme. They are offered to patients who are mentally violent and agitated. Sedatives offe
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A polymer instance has chain of different type of lengths and hence its molecular mass is all the time expressed as an average on the other hand natural polymer like proteins consi
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The total number of orbitals in an energy level designated by principal quantum number n is equal to: (1) 2n (2) 2n 2 (3) n
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Stereochemical arrangement has an issue whenever an atom is bonded to two or more others. Thus triatomic substance AB2 can be bent or linear. It is observed that when a central ato
Uses of Acid Amides (a) Acid Amides used in organic synthesis. The compounds like methyl cyanide, Methylamine and ethylamine can be prepared. (b) Acid Amides used in leathe
how we can mix solids by usig silica gel?
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