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Which of the following experimental observations best justifies Bohr's assertion that the energy of the electron in the isolated Hydrogen atom is restricted to certain allowed values (quantized)?
a. the discrete spectrum of Hydrogen
b.the schrodinger Wave equation
c.Electron diffraction
d.The photoelectron effect
e. the Pauli exclusion principle
not sure which actually proved it and can you explain why
What is the mass of 3.20 moles of magnesium chloride,MgCl2 ? Express your answer with the appropriate units. mass of MgCl2 =
Predict the shape and polarity of each of the following molecules. Assume all bonds are polar: a) a central atom with four identical bonded atoms and no lone pairs. b) a central atom with three identical bonded atoms and one lone pair. c) a centra..
non-electrolyte, X was dissolved in 100 g of Benzene, the vapor pressure of the solvent decreased from 100 torr to 93.8 torr at 299 K. Calculate the molar mass of the solute, X.
heated from 20 to 50 degrees Celsius. How many calories were needed to bring about the temperature change?
What is the resultant pressure if 3.7 mol of ideal gas at 273 K and 1.97atm in a closed container of constant volume is heated to 446 K.
The simplest formula of the compound is NO2 Which could be the molecular formula of the compound?
Calculate ΔG for the reaction if the partial pressures of the initial mixture are PPCl5 = 0.0029 atm, PPCl3 = 0.27 atm, and PCl2 = 0.40 atm PCl5(g)--> PCl3(g) + Cl2(g)
what region of the two phase system was the nylon-6,10 polymer formed after the sebacoyl chloride/cyclohexane
C2H4 + 3O2 = 2CO2 + 2H2O If you start with 54 grams of ethylene (C2H4) how many grams of carbon dioxide will be produced?
Take the x-axis as lying perpendicular to the plane of the molecule. Does the N2px orbital participate in the hybridization for either species? Briefly explain your answer.
Create a flow chart of the process to create a lewis structure. when is an expanded octet acceptable and why
The land area of Greenland is 840,000 mi2 with 132,000 mi2 free of ice. The average thickness of ice is 5000 ft. The density of the ice is 0.917 g/ml. Calculate the mass of ice in tons
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