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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.
Q. What condensed matter? Ans. There are four states of matter: solid, liquid, gas, and plasma. In this chapter, we will study liquids and solids which are called condens
Energy cycle or metabolism A cell has small molecules that are denoted as micromolecules also large molecules that is denoted as macromolecules. The chemical equations of a liv
how to learn the periodic table
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The ratio between the neutrons in C and Si with respect to atomic masses 12 and 28 is: (1) 2 : 3 (2) 3 : 2 (3) 3 : 7 (4) 7 : 3 Ans: 3 : 7
Conjugate-base anion of diethyl malonate The conjugate-base anion of diethyl malonate would be formed with sodium ethoxide, but it would not react with bromobenzene due to the
phsiscal properties &chemical propertise
what is fehlings test and its reagent?
Fast reactions are those reactions that occur instantaneously. A fast reaction depends upon the reaction rates. These reactions are so fast that they occur as soon as the reactants
what is electrometer
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