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Calculate the expectation value for the kinetic energy of the H atom with the electron in 2s orbital. Compare your result with total energy
When are covalent bonds most likely to form? a. between 2 atoms with a high ionization energy b. between 2 with a low ionization energy. c when one atom high and other low d. no correct choice. (I'm leaning towards a.)
What is the final temperature in a squeezed cold pack that contains 50.0 g of NH4NO3 dissolved in 135 mL of water?
the equilibrium contant kc=49 at 230^0C, for the reaction PCl3 + Cl2= PCL5. If 0.50mol of each of phosphorus trichloride and chlorine are added to a 5.0L reaction vessel.
how many grams of NH3 will be produced? Which reactant remains in excess, and in what mass?
What is H in kJ for the process of freezing a 28.9 g sample of liquid silver at its normal melting point of 961 oC.
For each reaction, use the solubility rules as well the equations in the background information to predict if there is a reaction, If there is no reaction indicate so by writting NR under predictions, write gas for gas formation and PPT for precip..
How many grams of Na3PO4 will be needed to produce 550 ml of a solution that has a concentration of Na+ ions of 1.00M ?
Estimate the vapor pressure at temperatures of 273, 298, 363, 383, and 423 K respectively
Is always a metal. Is called a catalyst. The magnesium acts as a reducing agent. How many electrons does each magnesium atom lose? Which family of elements in the periodic table contains the most powerful oxidizing agents?
A standard men's basketball has a circumference of 29.5 inches. If I fill the ball with Helium to the recommended 9.0 psi at room temperature (25 C), how many grams will the Helium in the ball weigh?
What is the minimum mass of sulfur dioxide necessary to produce 200. grams of sulfuric acid in the reaction?
If a raindrop weighs 57 mg on average and 5.1 X 10^5 raindrops fall on a lawn every minute, what mass of rain falls (in kg) on the lawn in 1.5 hours?
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