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Chemistry, 22.06.2019 09:00
If you chip a tooth, most likely you will go to the dentist to have the missing material filled in. currently the material used to fill in teeth is a polymer that is flexible when put in, yet is hardened to the strength of a tooth after irradiation with blue light at a wavelength of 461 nm. what is the energy in joules for a photon of light at this wavelength?
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Chemistry, 22.06.2019 12:00
Explain what happens at the saturation point when adding salt to water at room temperature.
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Chemistry, 22.06.2019 17:30
Air can be considered a mixture. which statement does not explain why?
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5. How many moles are in 19 grams of KNO,?...
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