Explain why are nonmetallic network solids usually quite
According to the delocalized molecular orbital theory of metals, in what sense do we say that the entire piece of metal is a large molecule? Explain why are nonmetallic network solids usually quite hard?
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Diammonium phosphate (DAP) fertilizer is a dry material that is being used extensively for bulk blending and for direct application where soils do not need potassium (K) or where potassium is broadcast.
The car leaves city travelling at 54mph. Half hour later second car leaves from same place and travels at given speed 63 mph along same road. How long it takes for second car to catch up to first?
At the end of the experiment a precipitate with a mass of 0.928g is obtained. Determine the % P2O5 in the plant food. An experiment was started, by mistake, with 2.37g of another type of fertilizer that has an NPK value of 19-19-19.&nbs
Determine the numbers of grams of solid NaCl must be added to 25.0 mL of 0.366 M AgNO3 solution to completely precipitate the silver? Silver chloride is virtually insoluble in the water so that the reaction appears to go to completion.
A sample of 0.4831 g of the compound was analyzed for nitrogen by the Dumas method. At STP, 27.6 mL of dry N2 was obtained. An organic compound contains C, H, N, and O.
Determine the numbers of grams of sodium are needed to completely react with the 1175 mL of chlorine gas at 945 mmHg & 21degrees Celsius? Chlorine gas reacts explosively with the sodium metal to form the solid sodium chloride.
A piece of copper also weighing 10.0 g (c = 0.385 J/g-K) is chilled in an ice bath to 0oC. A piece of gold weighing 10.0 g (c = 0.129 J/g-K) is heated to100.0oC. Both pieces of metal are placed in a beaker containing 150. g of water at20oC.
Just set up the calculations, but remember to include all information that is necessary to do the integrals and/or other calculations. Take as a trial function for the ground state of the hydrogen atom e^-kx.
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