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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.
hydrogen behave as a metal at low pressure only why
Preparation and uses of western
what is the role of structural protein, their types, how are they formed, significance.
In the chemical reaction, Al(s) + CuCl2(aq) --> Cu(s) + AlCl3(aq), why did the Copper turn green after being left for a day?
The color in KMnO4 arises from an electronic transition, but it is actually not a d-d ... When the light is reflected (or transmitted) it is missing the frequencies of the light ab
Q. Show the Properties of Matter? Each of the material the stuff around us is matter. A substance is matter which has a uniform and unchanging composition. For instance water
Acetylene tetrachloride (Westron), CHCl 2 ·CHCl 2 It is as well called as sym. tetrachloroethane. It is made by the action of chlorine on acetylene in existence of a catalyst
Q. Explain laws of Electrolysis? Ans . A spontaneous reaction takes place by itself. Some redox reactions are not spontaneous. In a no n-spontaneous redox reaction ,
Q. Structure of Covalent Bonds? Ans. A covalent bond forms between elements that are near each other in the periodic table While an ionic bond involves an exchange of e
In chemistry, an ideal solution or ideal mixture is a solution with thermodynamic properties analogous to those of a mixture of ideal gases. The enthalpy of solution (or "enthalpy
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