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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.
Q. What do you mean by Descriptors? Descriptors are selected terms used to describe the sensory attributes of products and vary from one product to the other. The chosen descri
Matrix modifier method: GFAAS is a much more sensitive as compared to flame AAS and requires a very small sample size. More so, it does not require any sample preparation; eve
what is cause of chemical combination?
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In polar covalent molecule, one atom gets positive charge and the other one takes negative charge as known as dipole.
Silver salt method for acids - Chemical methods It is based upon the fact that silver salt of an organic acid on heating provides residue of metallic silver.
0.47 moles of Sodium were reacted with 26g of Copper(II) Nitrate? If the actual yield of copper metal was 1.43g, what is the percentage yield of this reaction? 2. What is the equiv
The hybradization state of the Fe among [Fe(CN)6]3-,[Fe(CO)5] and [Fe(H2O)6]2+ is Ans) D2SP3,DSP3,SP3D2
How much time a hydrogen electron will take when it goes from first orbit to second orbit?
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