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Electrons are ejected from sodium metal by any light that has a wavelength shorter than 544 nm. What is the kinetic energy of an electron (in J) that is ejected from sodium by light with a wavelength of 267 nm?
A balloon has a volume of 10,500 liters, and the temperature is 15C. If the temperature were -25C, what would the volume of the balloon be.
Find reactant and product information, Balance the following reaction: Mn + HCl --> MnCl2 + H2, If you have 100g of Mn and 100g of HCl find
how does direct current break apart water molecule? does the dc current fill the outer shell full of electrons making a
So could you please explain how you can estimate the order of increasing melting points for the following compounds. Why is the estimate rather inaccurate
sodium azide a compound containing only sodium na and nitrogen n is used as a propellant for inflating airbags in some
a metal container holding xenon gas xe has a pressure of 458 torr at 20 degrees celcius. at what temperature will the
A buffer is made by mixing HCN and KCN to give a solution whose pH is 9.49. If the KCN molarity is 0.20 M, what is the molarity of the HCN?
Which of the following reactions will have the greatest rate at 298 K. Assume the frequency factor A is the same for all reactions. EXPLAIN YOUR ANSWER. No credit given if no explanation.
an electron is confined to a one dimensional box of length l it falls from the second energy level to the ground state
Calculate the freezing point and boiling point of a soultion of 383g of glucose dissolved in 400. g of water.
How many distinct terminal alkynes exist with molecular formula C5H8?
At what temperature does benzene boil when the external pressure is 480 ?
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