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Chemistry Overlap - Coggle Diagram
Chemistry Overlap
Bonding
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Metallic bonding
Metallic bonding involves attraction between delocalised electrons and positive ions arranged in a lattice
Bond polarity
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The electron distribution in a covalent bond between elements with different electronegativities will be unsymmetrical. This produces a polar covalent bond, and may cause a molecule to have a permanent dipole
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Forces between molecules
Forces between molecules
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induced dipole-dipole (van der Waals, dispersion, London forces)
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The melting and boiling points of molecular substances are influenced by the strength of these intermolecular forces.
The importance of hydrogen bonding in the low density of ice and the anomalous boiling points of compounds.
Ionic bonding
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Sulfate, hydroxide, nitrate, carbonate and ammonium
Amount of substance
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Mol + 6.02 x 10^23
mol unit of measurement used to measure amount of substance. One mol contains 6.02x10^23 this number is known as the avogadro constant.
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Energetics
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Enthalpy changes
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Standard enthalpy changes refer to standard conditions, i.e. 100kPa and a standard temperature (eg ∆H298Ɵ)
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