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15 Cards in this Set
- Front
- Back
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Chemical bonds resulting from the electrical attraction between opposite charges ( + & - ions)
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Ionic Bonds
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How are Ionic Bonds formed?
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By the transfer of electrons from one another resulting in the atoms hel together by ionic bonds.
Ex: Na+ Cl- (criss cross applesauce) |
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An atom that loses or gains an electron so it's a charged atom.
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Ion
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Are Ionic bonds stronger that Hydrogen bonds?
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YES
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Are Ionic bonds stronger than Covalent Bonds?
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yes
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Chemicals resulting from the sharing of electrons by atoms.
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Covalent Bonds
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How are Covalent Bonds formed?
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By atoms SHARING electrons resulting in the atoms beiong held togther by covalrnt bonds.
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An EQUAL sharing of electrons by the atoms forming the covalent bond. Electrical charge is EQUALLY distributed at both ends of the molecule.
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NON polar covalent bond
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NOT AN EQUAL SHARING of the electrons by the atoms forming the covalent bonds. So one end of the molecule has slight positive charge and the other end has a slight negative charge
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POLAR covalent bond
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Atoms share ONE pair of electrons
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Single Covalent Bond
ex: C-H |
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Atoms that share TWO pairs of electrons
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Double Covalent Bond
Ex: O2 |
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Atoms that share THREE pairs of electrons
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Triple Covalent Bond
Ex: N2 |
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A bond formed by the attraction of an H atom with a positive charge from one molecule to an atom with a negative charge on another molecule.
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Hydrogen Bond
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What is the Biological significance of hydrogen bonds?
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Some of the properties of water which make it vital life are due to hydrogen bonds froming between water molecules, and between water and other moelcules.
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The shape and function of proteins in hydrogen bonds are due to the extent of what?
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Hydrogen bonds forming between various atoms in a molecule.
Also important in the structure of DNA. |
