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Bonds molecules

A polymer is joined to itself by cementing with a solution of the same polymer in a volatile solvent. The solvent softens the surfaces, and the dissolved polymer molecules bond them together. Components can be joined by monomer-cementing the surfaces are coated with monomer which polymerises onto the pre-existing polymer chains, creating a bond. [Pg.261]

A covalent bond is formed when an electron pair is shared between atoms. According to valence bond theory, electron sharing occurs by overlap of two atomic orbitals. According to molecular orbital (MO) theory, bonds result from the mathematical combination of atomic orbitals to give molecular orbitals, which belong to the entire molecule. Bonds that have a circular cross-section and are formed by head-on interaction are called sigma (cr) bonds bonds formed by sideways interaction ot p orbitals are called pi (77-) bonds. [Pg.27]

Ihere are two criteria for determining the polarity of a molecule bond polarity and molecular geometry. If the polar A—X bonds in a molecule AXmE are arranged symmetrically around the central atom A, the molecule is nonpolar. [Pg.184]

A very similar equation can be written to explain why solutions of zinc salts are acidic. Here it appears that the hydrated cation in water solution contains four H20 molecules bonded to a central Zn2+ ion. The Bransted-Lowry equation is... [Pg.360]

TABLE 2.5 Bond Average and Actual Bond Lengths Average bond length (pm) Molecule Bond length (pm)... [Pg.207]

Molecule Bond Observed double bond distance character ... [Pg.204]

Fig. 6.—Potential energy curves for hydrogen molecules. The electron-pair halide molecules. bond structures H F , etc., are... Fig. 6.—Potential energy curves for hydrogen molecules. The electron-pair halide molecules. bond structures H F , etc., are...
Fraction of water molecules bonded to four other molecules. [Pg.62]

In Chapter 1, we introduced one of the best ways of drawing molecules, bond-line structures. They are fast to draw and easy to read, but they have one major deficiency they do not describe molecules perfectly. In fact, no drawing method can completely describe a molecule using only a single drawing. Here is the problem. [Pg.20]

Patrone, L., Paladn, S., CharHer, J., Armand, F., Bourgoin, J.P., Tang, H. and Gauthier, S. (2003) Evidence of ffie Key Role of Metal-Molecule Bonding in Metal-Molecule-Metal Transport Experiments. Physical Review Letters, 91, 096802. [Pg.355]

Molecule Bond Angle Molecule Bond Angle... [Pg.96]

Molecule Bond Lengths (pm) Bond angles 0 Atomic Charges Radii (pm) ... [Pg.192]

Molecule Bond Length (pm) Bond Angles ( ) Symmetry... [Pg.201]


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Bonding molecules

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