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bonds and reactions
ap bio unit one
| Term | Definition |
|---|---|
| covalent bonds | -sharing of electrons between two atoms -forms molecules and compounds -has single, double, and triple bonds -nonpolar and polar |
| single covalent bond | -1 pair of shared electrons |
| double covalent bond | -2 pairs of shared electrons |
| triple covalent bond | -3 pairs of shared electrons |
| nonpolar covalent bond | -electrons are shared equally |
| polar covalent bond | -electrons not shared equally -leads to partial charges |
| ionic bonds | -forms ionic compounds and salts -transfer of one atom to another forms ions -forms by attraction of anion and cation |
| anion | -ion with negative charge |
| cation | -ion with positive charge |
| hydrogen bonding | -partial positive atom attracted to partial negative atom in polar covalent bonds -hydrogen always has partial negative charge -an intermolecular bond |
| intermolecular bond | -bonds between molecules -hydrogen bonds to partial negative atom because of unequal sharing -polar covalent bonds |
| dehydration reaction | -bond two monomers with loss of H2O -OH of one bonds to H of another -releases H2O -A+B=AB+H2O |
| hydrolysis reaction | -breaks bonds by adding H2O -H bonds to one monomer, OH bonds to another -AB+H2O=A+B |
Created by:
26salisburb
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