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Composition
Silica : 45% Sodium oxide : 4% Potassium oxide : 4% Calcium oxide : 3% Lead oxide : 44% Lead carbonate or oxide replaces calcium carbonate. Potassium carbonate partly replaces sodium carbona..
Composition
It has lesser alkaline and higher alumina content than soda glass. It also contains barium oxide, zinc oxide and boron trioxide instead of silic..
Composition
Sand /Quartz : SiO 2 : 75% (will be nice if this can be a mouse over) Sodium Oxide : Na 2 O : 15% Calcium Oxide : CaO : 8% Aluminium Oxide : Al 2 O 3 : 2% (impuri..
Composition of cement
Cement is a product obtained by combining a material rich in lime, CaO with other materials such as clay, which contains silica, SiO 2 , along with oxides of aluminium, iron and magnesium. Different types of cement display different compositions of the metal oxides. T..
Composition of Talcum Powder
Calcium carbonate, magnesium carbonate - Help absorbency Titanium dioxide, zinc oxide, magnesium dioxide - Impart opacity Talc, metallic soaps - slipping Magnesium and zinc stearates - imparts adhesive propert..
Composition of atmospheric air
Gas Relative %age Volume Nitrogen (N 2 ) 78.09 Oxygen (O 2 ) 20.93 Argon (A) 00.93 Carbon di oxide (CO 2 ) 0.032 Miscellaneous 0.02 Total 100.000 Oxygen is present in the first zone, 10 to 12 km from the surface of the ea..
Cement
Portland cement is a very important building material. It was first discovered in England. It got its name because on setting, it hardened to a stone-like mass and was compared to the famous Portland Rock of England. It is a mixture of calcium and aluminium silicates with gypsum. The approxim..
Second experiment
Copper taken = 1.179g Copper oxide formed = 1.476g Oxygen present = 1.476 - 1.179 = 0.297g Percentage of oxygen is same in both the above cases so the law of constant composition is illustrate..
Copper taken = 1.179g Copper oxide formed = 1.476g Oxygen present = 1.476 - 1.179 = 0.297g Percentage of oxygen is same in both the above cases so the law of constant composition is illustrate..Formation of Acid Rain
Sulphur dioxide and nitrogen oxides react with water in the atmosphere producing sulphuric acid and nitric acid. These acids come down along with the rain. This phenomenon is called acid rain. The pH of acid rain varies from 3-6. The composition of acid rain is sulphuric acid, n..
Glass
Ordinary glass is a mixture of sodium and calcium silicates and is made by heating a mixture of sand (essentially SiO 2 ) with sodium carbonate and calcium oxide in a furnace at around 1700K and cooling rapidl..
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