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Explain what are the similarities between the Rutherford-Bohr atom as well as the modern quantum mechanical model? Explain what are the differences? Define why is the Rutherford-Bohr model still useful? Explain in what situations would you use one model over the other? Why?
Explain what is ionization energy? Explain how is it related to electro negativity? Define what is the pattern for ionization energy in the periodic table? State what is the pattern for electronegavity in the periodic table?
The Ksp for BaF2 is 2.4 x 10-5. When 10 mL of 0.01 M NaF is mixed with 10 mL of 0.01 M Ba(NO3)2, will a precipitate form
Draw the structure of the unbranched isomer of C5H11Br that is most reactive in an SN2 reaction.
What is the coefficient of H2O when the following equation is properly balanced with smallest set of whole numbers?
Assuming that the coal was 4.50 \% sulfur by mass and that combustion was complete, calculate the number of tons of sulfur dioxide produced by the plant during the year.
the temperature inside a balloon is raised from 25.0 degc to 250.0 degc. if the volume of cold air was 10.0 l what is
A buffer is prepared by mixing 161 mL of 0.193 M NaOH with 695 mL of 0.687 M sodium bicarbonate (NaHCO3). Given that the Ka1 of H2CO3 is 4.5 x 10-7 and the Ka2 is 4.7 x 10-11, calculate the pH of the solution.
at 125degc kp 0.25 for the following reaction.2 nahco3s na2co3s co2g h2oga 1.00 l flask containing 14.8 g nahco3 is
What is the molecular orbital theory. How does it differ from valence bond theory
Using scanning tunneling microscopy, scientists at IBM wrote the initials of their company with 35 individual xenon atoms.
What are the precipitation reaction with balanced molecular, total ionic and net ionic equations for na2
In the technique of electron impact mass spectroscopy, molecular fragment are identified through a characteristic pattern of peaks at different values of m/z
What feed rate of the 30.0 wt% HBr solution would be required to produce 1050 kg/hr of product. What is the feed ratio of liters of 12.0 wt% HBr solution to liters of 30.0 wt% HBr solution.
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