Monday, February 18, 2013

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Assignment 2-4

1. What is trammeling?
Bonding - a close personalized relationship that forms betwixt people

2. In chemistry define chemical bonding?
There is a chemical bond among dickens atoms or groups of atoms in case that the forces acting between them atomic occur 18 such as to lead to the formation of an coalesce with sufficient stability to make it convenient for the chemist to encounter it as an independent molecular species.

3. Give the meaning and example of the ff:
a. Lewis dot Structure 

The structure of snow and its compound put forward be expressed using the Lewis-dot structure This system identifies how the atoms that compile a molecule of a specific compound are attached (bonded) to one a nonher and (to some extent) oriented in space.  An atom is indicated by its symbol with a number of dots representing the number of valency electrons e.g Hydrogen would be H with a maven dot, Carbon would be a C with four dots.   When two valency electrons are paired they are represented by two adjacent dots.   Paired valency electrons are not normally available for forming bonds with other atoms.Lewis diagrams are useful for visualizing twain ionic and covalent bonds

Example : Assign formal charges to apiece atom in HCN.

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First draw the Lewis dot structure: [pic]
The two non-bonding electrons are assigned to nitrogen, as are threesome electrons from the triple bond. The other three electrons in the triple bond (remember there are a total of 6 electrons in a triple bond) are assigned to carbon. Both carbon and hydrogen receive one electron from the single bond. If I total these up and subtract from the number of valence electrons associated with individually atom (5 for N, 4 for C and 1 for H), I drive the formal charges:
N = 5 5 = 0
C = 4 4 = 0
H = 1 1 = 0

b. Octet Rule

The  ogdoad rule is a chemical rule of thumb that states that atoms of paltry (If you want to get a full essay, order it on our website: Orderessay



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