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237Np is the parent nuclide of a decay series that starts with alpha emission, follow by beta negative (-) emission, and then two more alpha emissions. Write a balanced nuclear equation for each step.
Ten seconds after the big bang the Universe was composed of only protons, neutrons, electrons, neutrinos, antineutrinos and photons. Write a brief account of the processes since this point that have directly led to the production of the heavy elem..
Write the rate expression for the reaction C) Calculate k for the reaction D) When [S2O8 2-] = 0.105 M and [I-] = 0.0875 M, what is the rate of the reaction at the temperature of the experiment?
Why do oxyacids become stronger when more oxygens are added. (as in the case of HNO2 being much weaker than HNO3)
Show how each of the following compounds could be prepared from 3-pentanone. In most cases more than one synthetic transformation will be necessary.
At a certain temperature, 893 K, Kp for the reaction, 2 H2S(g) 2 H2(g) + S2(g), is 5.26 x 105. Calculate the value of ?Go in kJ for the reaction at 893 K.
How many total moles of ions are released when the following sample dissolves completely in water? 7.24x 10^20 formula units of NiCl2.
Use the Nernst equation to calculate the Cd2+ concentration when given cell potential of +0.768V and Mn2+ concentration of .500M
How many mL of 0.358M NaOH are required to completely react with 16.9 mL of 0.577M copper(II) nitrate. (balanced equation)
Consider an experimental run at 273k where the initial number of moles is actually 1.00 , and the final number of moles is 2.00 . Use the simulation to find the volume of 1.00 of helium at 273k and calculate the final volume.
At a certain temperature and pressure 2.8 L of N2 reacts with 4.2 L of O2. If all the N2 and O2 are consumed, what volume of N2O3, at the same temperature and pressure, will be produced
Methane is burned in a Laboratory Bunsen burner to give CO2 and water vapor. Methane gas is supplied to the burner at the rate of 5.0 L/ min ( at temperature of 28° C and a pressure of 773 mm Hg).
In an actual experiment, 100 g each of copper and nitric acid are used and 70g of copper(II) nitrate is obtained. In this experiment, what is a) the limiting reactant
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