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Chemistry, 21.06.2019 16:30
Asample of silver (with work function ? = 4.52 ev) is exposed to an ultraviolet light source (? = 200 nm), which results in the ejection of photoelectrons. what changes will be observed if: silver is replaced with copper (? = 5.10 ev) more photoelectrons ejected no photoelectrons are emitted fewer photoelectrons ejected more energetic photoelectrons (on average) less energetic photoelectrons (on average)
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Chemistry, 21.06.2019 18:10
The enthalpy of formation of water is -285.8 kj/mol. what can be inferred from this statement?
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Chemistry, 22.06.2019 12:00
What is the subscript for oxygen in its molecular formula
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Leah and Sam were making a wave with a rope. They were able to measure that the wavelength is 0.5 me...
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