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Meetings%2031%2C%2032%20F%202010

Meetings%2031%2C%2032%20F%202010 - Chapter 9 Coordinate...

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1 Meetings 31, 32 Chapter 9 Coordinate covalent bonds Example H 3 N: + BF 3 H 3 N-BF 3 The bonding pair comes completely from one of the reactants. Compounds with incomplete octets can complete them by bonding with another compound with a lone pair to spare. Sometimes written as H 3 N BF 3 Lewis Acid, Lewis Base Lewis acid: electron pair acceptor. Lewis base: electron pair donor The bond formed is a coordinate covalent bond. In the reaction of NH 3 with BF 3 ammonia acts as a Lewis base and boron trifluoride acts as a Lewis acid.
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