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  1. G

    Please help me with this Chemistry problem.?

    Add charges, single electron dots, and/or pairs of dots as appropriate to show the Lewis symbols for the most stable ion of each element. Treat n=4 as the valence shell in all cases. Place charges and electron dots as needed on each ion. As Se Br K Ca Ga
  2. G

    Please help with Chemistry problem?

    An argon ion laser puts out 4.0 W of continuous power at a wavelength of 532 nm. The diameter of the laser beam is 6.2 mm. If the laser is pointed toward a pinhole with a diameter of 1.2 mm, how many photons will travel through the pinhole per second? Assume that the light intensity is equally...
  3. G

    Chemistry.acidity.pH.freezing/boiling point?

    Either has either.
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