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Chemistry, 22.06.2019 15:00
Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.
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Chemistry, 23.06.2019 15:30
Can someone me with these problems? see the attachment, .
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Chemistry, 23.06.2019 16:00
Challenge question: this question is worth 6 points. as you saw in problem 9 we can have species bound to a central metal ion. these species are called ligands. in the past we have assumed all the d orbitals in some species are degenerate; however, they often are not. sometimes the ligands bound to a central metal cation can split the d orbitals. that is, some of the d orbitals will be at a lower energy state than others. ligands that have the ability to cause this splitting are called strong field ligands, cnรขโ is an example of these. if this splitting in the d orbitals is great enough electrons will fill low lying orbitals, pairing with other electrons in a given orbital, before filling higher energy orbitals. in question 7 we had fe2+, furthermore we found that there were a certain number (non-zero) of unpaired electrons. consider now fe(cn)6 4รขโ: here we also have fe2+, but in this case all the electrons are paired, yielding a diamagnetic species. how can you explain this?
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Chemistry, 23.06.2019 16:30
Asample of calcium chloride (cacla) contains 100.2 grams of calcium (ca) and 177.3 grams of chlorine (co. what is the percent composition of chlorine 2.510% 36.10% 56.50% 63.89%
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What is the most appropriate si (metric) unit for measuring the length of an automobile?...
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