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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Consider another expandable balloon is filled with nitrogen gas. The density of the gas is 1.24 g/L and the outside pressure is 1.05 atm. What is the temperature of the gas?
In a 100 ml sample of buffer solution made of propanoic acid concentration .35M and sodium propanoate concentration .5M some NaOH is added. .0040 mole of solid NaOh is added Calculate pH of solution
Question: For a given equilibrium reaction at 25 degrees celsius, the equilibrium coefficient is 1.5x10^ -4. If the value of the forward Arrhenius factor is 0.12 and the activation energy of the forward reaction is 44kJ, what is the value of the r
Cinsider the reaction 2KCl3(s) --> @Kcl(s) + 3O2(g) How many grams of oxygen are produced from the complete reaction of 23.8g of KCL3? How many molecules are present in 1.80g of C6H8O6
Compute the concentration in molarity of an NaOH solution if 25 ml of solution is needed to neutralized 19.1 ml of 0.305 M HCl solution
How many mL of an ethanol-water solution prepared by dissolving 15.0 cm3 of ethanol (density= 0.789 g cm-3) in sufficient water to produce 120.0 cm3 of solution
Calculate the difference in the chemical potential of sucrose at 0.01 M and at 0.0001 M concentrations.
To what energy level was the electron initially excited. (b) What is the net energy absorbed or emitted by the atom (in units of eV) in the overall process
a buffer is made using 45.0 of 0.750 M propanoic acid (Ka=1.3x10^-5) and 55.0 ml of 0.700 sodium propanoate. what is the pH of the buffer. what is the pH after 4.91 ml of 1.00 M sodium hydroxide is added
Calculate ΔS (universe) for the decomposition of 1 mol of liquid water to form gaseous hydrogen and oxygen. Is this reaction spontaneous under these conditions at 25 °C?
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