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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.
Applications of hybridisation - Size of the hybrid orbitals As s- orbitals are closer to the nucleus than p- orbitals, it is reasonable to suppose that greater the s character
5 points on nickel plating
Q. Determine the Number of neutrons? Isotopes of an element can as well be specified by writing the mass number of the isotope following a hyphen after the name of the element.
Some important types of electrodes which are frequently used in electrochemical cells are described as follows: Metal-metal ion electrode: such type of electrodes includes a
calculate the concentration of the Naoh solution you have prepared on the basis of the measured mass of the pellets used in the solution volume
The total number of electrons present in all the p-orbitals of bromine are: (1) Five (2) Eighteen (3) Seventeen (4) Thirty five Ans: Seve
external generation of titrant in coulometers
Q. The pressure in a liquid droplet of radius r is greater than the pressure of the surrounding equilibrated gas phase by a quantity 2 =r, where is the surface tension. (a) Cons
Uses of Polyglycolic acid,Polylactic acid and Polyhydroxybutyrate PGA and PLA (90 : 10) is utilized to form absorbable structure to close an internal of external wound and has
Elements of Group 13 are less metallic than those of groups 1 and 2. Within the group, there is a variation in metallic character. Boron, the smallest element in this group is a no
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