Chapter 3 - Adapted from L. Miriello by S. Sharp AP Biology...

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Hydroxide - Hydronium + O O O O H H H H H H H H Adapted from L. Miriello by S. Sharp AP Biology Name _Adeesh Jain_____________ Chapter 3 Guided Reading Assignment This chapter is a review from your previous biology class – these concepts are critical and repeated throughout the year. If you have not covered this material previously or need additional assistance with the concepts please schedule time to see me. 1. Why is water considered a polar molecule? The oxygen in water is more electronegative than hydrogen, therefore electrons spend more time there. This gives oxygen a partial - charge and hydrogen a partial + charge. Because of this, it is considered a polar molecule. 2. For each of the below listed properties of water – briefly define the property and then explain how water’s polar nature and polar covalent bonds contribute to the water special property. Include an example in nature of each property also. a. Cohesion-the binding of like molecules; water is polar, so it can form hydrogen bonds with four other water molecules which is cohesion; to get water from the roots to the leaves of a plant, cohesion comes to play. The water at the very top of the vessel goes upward, so it has hydrogen bonds with other water molecules bringing the rest of the water upward too. b. Adhesion- the clinging of one substance to another; since water is polar uses
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This note was uploaded on 02/25/2010 for the course BIO 56342 taught by Professor Jims during the Spring '10 term at Bucks New University.

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Chapter 3 - Adapted from L. Miriello by S. Sharp AP Biology...

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