Explain the de broglie wavelength of one of these alpha
Determine the de Broglie wavelength of one of these alpha particles. Alpha particles emitted from the radioactive radium have energy of 4.8 MeV.
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Discuss what effect does an increasing concentration of Na2O have on the flow properties of a silica-based glass? When a glass modifier like Na2O is added to SiO2, does the oxygen: silicon ratio increase or decrease? Briefly explain why.
To that mixture, suppose you add AgNO3(s) and mix well. Calculate what changes would take place. Suppose that you began with an aqueous solution of CoCl2.6H2O, to which you add 12 M HCl until the solution is purple after mixing.
Which form of the hypotheses should be employed to test the companies claim?
Discuss at what radius in the Angstroms does the probability of finding an electron at a point in the ground state H atom fall to 80 per cent of its maximum value?
Consider the Earth and a cloud layer of 900 m above the planet to be the plates of a parallel-plate capacitor.
The element tungsten freezes at 3422 degrees C, and its molar enthalpy of fusion is ΔH fus=35.2 kJ/mol Discuss when the molten tungsten solidifies to the tungsten at its normal melting point, is ΔS positive or negative
The decomposition of N2O5 in CCl4 is a first-order reaction. Describe the value of the rate constant, k if 2.56 mg of N2O5 is present initially, and 2.50 mg is present after 4.26 min at 55degrees Celsius.
Describe the work for the compression of CO2 gas from 3.0 to 1.5 liters against a pressure of 2.0 atm at constant temperature.
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