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theories (lewis (base (Lewis Bases are Nucleophilic meaning that they…
theories
lewis
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acid
Lewis acids accept an electron pair. Lewis Acids are Electrophilic meaning that they are electron attracting. When bonding with a base the acid uses its lowest unoccupied molecular orbital or LUMO (Figure 2).
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Lewis proposed that an acid is an ion or molecule with a vacant atomic orbital that can accept (share) an electron pair. A base is an ion or molecule with a lone electron pair that it can donate (share)
arrhenius
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What this means
there aren't free hydrogen cations floating around in aqueous solution. Rather, the extra hydrogen forms hydronium ions.
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B.lowrey
Acids:
any compound that can transfer a proton to any other compound is an acid. A proton is a nuclear particle with a unit positive electrical charge; it is represented by the symbol H+ because it constitutes the nucleus of a hydrogen atom. any species that can donate a proton (H+) to another molecule.
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Base:
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To accept a proton,the base must have at least one pair of electrons to form a new bond with a proton
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