BIO 9-1 - I. Molecule- two or more atoms bound together I...

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Unformatted text preview: I. Molecule- two or more atoms bound together I I. Compound- molecules composed of two or more different elements I I I. Types of interactions that hold atoms together (strongest to weakest) a. Covalent bonds- Share electrons b. Ionic bonds- atoms gain or lose electrons c. Hyderogen bonds- interaction between an electromagnetic atom and a hydrogen atom of two polar covalent molecules d. Van der waals interactions- temporary asymmetric displacement of electron. IV. CHAPTER 3 WATER V. Water is a polar molecule VI. Water is a cohesive VI I. VI I I. Water maintains a constant temperature Water can dissolve other polar molecules IX. Hydrophillic- water loving ionic or polar molecules X. Hydrophobic- water dreading non polar molecules XI. Acid- molecules that raise the concentration of H+ a. HCI--H+ + ClXI I. BASE- molecules that lower the concentration of H+ a. N H 3 + H+ <- -> N H 4+ b. NaOH + H+ Na+ +H 2 O ...
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