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(a)Why does Li have a larger first ionization energy than Na?
(b) The difference between the third and fourth ionization energies of scandium is much larger than the difference between the third and fourth ionization energies of titanium.Why?
(c) Why does Li have a much larger second ionization energy than Be?
Combustion examination of a 12.01-g sample of an unknown compound which contains simply carbon, hydrogen, and oxygen-produced 14.08 g CO2 and 4.32 g H2O. Determine the empirical formula for the unknown compound
At 46 C a sample of ammonia gas exerts a pressure of 4.27 atm. what is the pressure when the volume of the gas is reduced to one-fourth of the original value at the same temperature
What is the theoretical yield when 0.040 g benzophenone is added to 1 mL methyl alcohol?
Question- The solubility product, Ksp, for iron(II) sulfide is 6.0 x 10^-19. Calculate the molar solubility of iron(II) sulfide
what is the chemical calculation to figure out the follow: how many moles of the indicated solute does the following contain, 12.5 mL of 0.104 M HCL
calculate the reaction rate of potassium iodide and hydrogen peroxide to include the order of reaction.
HbS has normal shape under normal conditions, but under conditions of low [O2] the hemoglobin forms fibrous aggregations, giving the entire red blood cell a sickle shape. (See image of eight HbS molecules at right.)
Calculate the amount of heat needed to melt 2.00 kg of iron at its melting point (1,809 K), given that ΔHfus = 13.80 kJ/mol.
Sparkling wine is bottled under a CO2 pressure of 4.1 atm. The solubility of CO2 at 4.1 atm is 0.70 g/100 g H2O. What is its solubility after the bottle is opened if the partial pressure of CO2 is 3.4x 10-4 atm
in a test on the vaporization of water into air in a wetted-wall column the following data were obtained tube diameter
how to calculate the concentration of a standard solution and the concentration of KMnO4 the mass of sodium oxalate used was 0.8367g and then it was diluted down with 50ml water, and 20ml H2SO4 then 25 ml of that solution
Question- CaO can be used as a drying agent. One such application occurs when water is added to dry concrete or cement. The reaction that occurs is
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