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GEOCHEMISTRY
The chemical processes taking place in the crust are especially important as they have build ores, concentrated mineral deposits that are exploited industrially as sources of specific components and their elements. Summarizes the principal chemical forms in which each element perform. At least half the elements prepare in the crust as oxides (mostly complex ones such as silicates) or less commonly as halides, and are called lithophiles. All the bigger electropositive metals are in this class. Chalcophiles are components present in sulfide minerals; these include some elements chemically same to sulfur (As, Se) together with less electropositive metals of the later post transition and transition metal groups.
Fig. 1. The periodic table showing the principal types of chemical compound occurring for elements at the Earth's surface.
Explain Hammonds postulate Because the transition states of the two reactions should resemble the respective carbocation intermediates (Hammond's postulate), study the structur
why is the isoelectric point of all amino acids not at ph 7 and what has the ionisable side chains got to do with it?
what is AAS
What are the systems for which concept of continuum is not applicable and why?
Monosaccharides - Biomolecules These are very simple one unit non-hydrolysable sugars. They have the common formula C n H 2n O n where n changes from 3 to 9 carbon molecules.
preperations
write a short note on colour and constitution
This compound, 1,3,5-cyclohexanetrione, exists as its "triene-triol" isomer phloroglucinol because the latter is aroma
When an electron drops from a higher energy level to a low energy level, then: (1) Atomic number decreases (2) Energy is absorbed (3) Atomic number increases (4) Energ
Write a program called tarc that performs much of the cf operation of tar .The command arguments look like: If there are no ar guments, tarc reports an error and e xits. If ther
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