Atomic bonding point of view
Pure aluminum is ductile metal withlow tensile strength and hardness. Its oxide Al2O3 (alumaina) is extremenly strong, hard, and brittle. Can you explain this difference from am atomic bonding point of view?
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Identify all the energy exchange processes that influence the performance of the collector. Suggest design features that would increase collection efficiency.
The surface water is at a temperature of 25°C, while the bottom of the pond is at 12°C. Find the rate at which energy is transferred by conduction from the surface to the bottom of the pond.
The molar heat of neutralization from hydrochloric acid and sodium hydroxide is -57.3 kJ/mol. use this accepted value to predict the heat evolved during the neutralization of 655 ml of 1.00 M hydrochloric acid by 1.00 M sodium hydroxide.
The method used in this experiment is sometimes called the vapor density method. Beginning with ideal gas equation, show how the density of a vapor may be determined by this method.
Calculate the pressure that CCl4 will exert at 53°C if 1.00 mol occupies 34.2 L, assuming that CCl4 obeys the ideal-gas equation; CCl4 obeys the van der Waals equation.
Draw an electron-dot structure for Acetonitrile, C2H3N, which contains a carbon-nitrogen triple bond. How many electrons does the nitrogen atom have in its outer shell? How many are bonding, and how many are non-bonding?
The following table gives the number of electrons, protons, and neutrons in atoms or ions of four elements, identified only as A, B, C, and D. Write the isotopic symbol for each element.
What is the empirical formula? If the molar mass of the chlorine oxide is 356.7 g/mol, what is the molecular formula of the compound?
What is the maximum amount of work that can be obtained by the combustion of this butane if the gas is first brought to a pressure of 1.00 atm and the temperature is brought to 25 oC? Assume the products are also returned to the same temperature a
Calculate the energy difference between the ("spin up") and ("spin down") levels of a hydrogen atom in the 1 state when it is placed in a 1.60 magnetic field in the negative z-direction.
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