27 - 1 Polar and nonpolar covalent bonds 2 Hydrogen bonding...

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1 8/27/10 1. Polar and nonpolar covalent bonds 2. Hydrogen bonding 3. Water is a highly polar molecule 7. Properties of water UT Learning Center offers “Chem Refresher for Bio 311C students” – Next week! http://lifelearning.utexas.edu/ to register Polar and nonpolar covalent bonds Source: www.800mainstreet.com from Handout 1 1-3. Distinguish between polar and nonpolar covalent bonds in terms of electronegativity values. 1-4. Rank these covalent bond types from (1) most polar to (4) least polar: (A) N-H (B) O-O (C) C-H (D) O-H Be able to recognize polar and non-polar groups within molecular structures. Examples of important polar covalent bonds in biological systems are: O-H and N-H Examples of important non-polar covalent bonds (or relatively non-polar covalent bonds) are C-C, O-O, and C-H. Distinguish hydrophilic from hydrophobic . (What if a molecule is polar at one end and non -polar at the other end?) Which of these has only non-polar covalent bonds?
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