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Air expands when heated
To show that air expands when heated, fit an electric light bulb flask or a bottle with a single- whole stopper or cork which has a 30-cm length of glass tubing or a soda straw by it. Place the end of the tube in a small bottle of water. Heat the flask and view what happens. Heat the flask until a considerable amount of air has been separated and then cool the flask by pouring cold water over it or by rubbing with a piece of ice.
porogamic fertilization
Ionising Radiations " The three types of ionising radiations mentioned above penetrate matter to different extent. Table summarises the nature, ionising power and penetration of th
Ethical issues concerning use of animals for experimentation and educational purposes (i) Animals procured, handled and looked after according to the regulatory principles laid
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Softening water with chemicals Try making suds with a half test tube of hard water and a few drops of soap solution. Next boil a same sample and again try to make suds by usin
Coastal Seafood Coastal Seafood is a family-owned business that operates on the East Coast. The company already uses both financial and point-of-sale software, but has been una
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The active ingredient in Antabuse, a drug used for the treatment of chronic alcoholism, is tetraethylthiuram disulfide, C10H20N2S4 (fw = 296.54). The sulfur in a 0.4329 g. sample o
Explain the Pontine Centre The rhythmic discharge of the neurons in the respiratory centre is modified by centers in the pons (apneustic and pneumotaxic centre). Activity in th
CHEMICAL EFFECTS OF AIR Wash a small wad of steel wool in gasoline, benzene or carbon tetrachloride (car- bona) to delete any grease. Squeeze it out and then fluff it. As soon
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