Chemistry, 11.12.2019 04:31, BreBreDoeCCx
An astrophysicist working at an observatory is interested in finding clouds of hydrogen in the galaxy. usually, hydrogen is detected by looking for the balmer series of spectral lines in the visible spectrum. unfortunately, the instrument that detects hydrogen emission spectra at this particular observatory is not working very well and only detects spectra in the infrared region of electromagnetic radiation. therefore, the astrophysicist decides to check for hydrogen by looking at the paschen series, which produces spectral lines in the infrared part of the spectrum. the paschen series describes the wavelengths of light emitted by the decay of electrons from higher orbits to the n=3 level.
what wavelength λ should the astrophysicist look for to detect a transition of an electron from the n=7 to the n=3 level?
express your answer with the appropriate units.
Answers: 2
Chemistry, 22.06.2019 03:00, bobbycisar1205
How does a hydroelectric power plant converts energy into energy.
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Chemistry, 22.06.2019 05:00, YoEsMyles3115
0.2348 grams of pbcl2 used to form 44.0 ml of solution.
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Chemistry, 23.06.2019 12:30, dependentclause5828
Idid a lab for chemistry where we put nails in a copper (ii) chloride solution. 1. why did the reaction stop? which reactant was used up? how do you know? 2. describe what was happening to the atoms of iron and copper during the reaction. what is this type of reaction called? 3. what would happen to the ratio of copper to iron if you had placed more nails in the beaker? if you had let the reaction go for less time? 4. what is the accepted ratio of copper atoms to iron atoms in this reaction? account for differences between your experimental value and the accepted value. write the balanced equation for the reaction.
Answers: 2
An astrophysicist working at an observatory is interested in finding clouds of hydrogen in the galax...
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