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Another way to show that water pressure increases with depth
Search a tall tin can. Punch holes up the side of the can about 3 cm apart. Put a strip of adhesive or plastic tape over the row of holes and fill the can with water above the top hole. Hold the can over a sink and strip the tape from the holes starting at the bottom. Observe the streams and note the distances travelled outwards from the can.
In recent years, the scientists have designed the cells which convert chemical energy of a fuel directly into electrical energy. These cells are called fuel cells. These are the vo
Why NH4Cl and NH4OH are added to the test solution?
Characteristic flame colour: specific metals and their salts impart particular colours to Bunsen burner flame. (1) Pb (plumbum) impart pale greenish colour to the f
Q. What do you mean by Mixtures of Matter? A mixture is a mixture of two or more pure substances in which each substance retains its individual properties. Concrete mainly ro
The number of unpaired electrons in 1s 2 2s 2 2p 4 is: (1) 4 (2) 2 (3) 0 (4) 1 Ans: 2
Q. Describe about Coordination compounds? The complexes show a wide variety of physical and chemical properties which are quite different from normal salts. These differences
Q. Use of Reactants in Excess? Ans. Consider a recipe for pancakes that calls for 2 cups of pancake batter mix and 1 cup of water. The result of this recipe is 14 pancakes
Wheat bran The useful role of wheat bran in promoting regularity in colonic function and preventing constipation is generally accepted. In addition, growing research has focu
Sedimentation: The process of allowing w ater to stand undisturbed in big tanks for some time in order to facilitate the settling down of the course suspended particles due to th
SULFUR, SELENIUM AND TELLURIUM The elements known commonly as the chalcogens are in the same group (16) as oxygen. They form some compounds same to those of oxygen, but show m
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