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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, 22.06.2019 03:30
What is the relationship of air masses and the temperature of oceans?
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Chemistry, 22.06.2019 05:50
Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.
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How much of 3M NaOH will be required to make 100mL of 0.05M NaOH?...
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