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The difference between hard and soft water
Collect some hard water from a stream(or make some as defined in the next experiment). Also secure some soft water like as rain water or distilled water. Make some soap solution by dissolving soap shavings or powdered soap in a little warm water. Place equivalent amounts of hard and soft water in every of two bottles. Add soap solution to the soft water with a dropper, some drops at a time. Shake the bottle well after every addition. Count the number of drops of soap solution required to produce suds about 1 cm thick on the top.
To show how water rises in fine tubes Make some fine hair or capillary tubes by heating glass tubing in a flame and drawing it out. Cut the tubes and glue them to a piece of c
Explain the Gynaecological morbidity Gynaecological morbidity, which covers any condition, disease or dysfunction of the reproductive system that is not related to pregnancy, a
Ligases (synthetases) These enzymes (code EC 6) catalyze the linkage of two molecules coupled with the hydrolytic breakdown of a pyrophosphate bond in ATP or an analogous co
Lifting the water surface Bend the pointed end of a pin or use a piece of fine wire to make a hook. File the point of the hook unless it is very sharp. Put your eye on a level
Shut -down Sequences : In some respects, the time when the lab is being shut down is potentially one of the most dangerous periods of the day. For example, at the end of a day's w
Explain the Structure and Functions of Liver The liver is enclosed in a thin capsule and is completely covered by a peritoneum. The liver is described as having four lobes. As
Describe the factors which decide the broad area of scientific activity?
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laboratory apparatus for separating mixture
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