我怕被刺穿
发表于 2025-3-23 11:57:24
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把…比做
发表于 2025-3-23 17:27:19
Bernd Stimm,Mengistie Kindu,Thomas Knokee earth’s crust, there are relatively few known deposits of nickel ores that are capable of being worked economically. One such deposit is that of pentlandite (Ni, Fe). S. at Sudbury, Ontario. The metal is extracted either electrolytically or by the Mond carbonyl process (section 10.2.2).
FILTH
发表于 2025-3-23 19:14:38
Lewis Acids and Bases,simple’ substances will react with ligands? One way of dealing with this problem is to use the theory of acids and bases put forward by G.N. Lewis in 1938. Lewis called those substances capable of acting as ligands . and the substances with which these react .. The formal definitions may be summarised as follows
corpuscle
发表于 2025-3-23 22:51:54
General Preparative Methods,e research scale. Occasionally the synthesis of a new compound has an enormous impact on our progress and understanding in chemistry. Such was the case with ferrocene Fe(π-C.H5).discovered in 1951, and xenon tetrafluoride XeF., first prepared in 1962.
TOM
发表于 2025-3-24 05:32:44
Vanadium, As a result of this, vanadium is perhaps the most colourful of the transition elements, showing compounds of every colour and even with considerable colour variation within each oxidation state. It was because of the beauty of these colours that Sefstrom in 1830 named the element vanadium in honour of the Scandinavian goddess Vanadis.
mendacity
发表于 2025-3-24 10:01:18
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婚姻生活
发表于 2025-3-24 13:37:31
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胆小懦夫
发表于 2025-3-24 16:20:39
https://doi.org/10.1007/978-1-349-02335-6air; analytical chemistry; carbon; chemistry; city; energy; environment; formation; hydrolysis; Precipitation
Intersect
发表于 2025-3-24 19:20:25
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GEST
发表于 2025-3-25 02:24:45
https://doi.org/10.1007/978-1-4612-4306-9In this chapter we continue from the very brief introduction given to magnetism in chapter 5. We begin by defining the terms and quantities that are used in magnetochemistry.