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Here’s what consumers have asked with answers from AssignmentExpert staff and previous consumers.
Dear ROHITMALLINATHSHETGAR N., we do not have the direct phone number to call :) Nevertheless, our support department is online 24/7, so customers may contact us any time via online chat on the site.
Dear samuel a., Electron density is the measure of the probability of an electron being present at a specific location. In molecules, regions of electron density are usually found around the atom and its bonds. Every reaction is a transaction of electrons between atoms. That means that if we really want to understand a reaction, we have to understand where the electrons are (and arent). There are two factors to employ when doing this. The first is electronegativity. The second is resonance. In a bond, the more electronegative element will have a greater share of the electrons, and a partial negative charge to reflect this greater electron density. The less electronegative element will have a partial positive charge to reflect the lack of electron density. Because in chemical reactions, electrons will flow from areas of high electron density to areas of low electron density. Knowing where the partial charges are is an important first step in determining where the molecule will react.
Dear Alabi J., Ethylenediaminetetraacetic acid (EDTA) is a member of the aminopolycarboxylic acid family of ligands. EDTA in this complex binds to a magnesium cation through its two amines and four carboxylates. In resulting magnesium edetate complex adopt octahedral geometry. Mg-N bond is covalent. The Mg-N bond is formed by the donor-acceptor mechanism. Magnesium is in Group 2. It has two electrons in its outer shell. When these electrons are lost, a magnesium ion Mg2+ is formed. A magnesium ion has the same electronic structure as a neon atom (Ne). There is a transfer of the unshared electron pair from the donor (amino group) to the acceptor (magnesium cation), leading to the formation of a bond.
Dear mlindos t., Assignment Expert is the leading provider of homework help to students worldwide. Our online assignment help services are quite extensive and cover all types of homework help needed by students. You can submit your request and our online homework helpers will provide the solution within the shortest time period. Feel free to use our services!
