Biology 1 Exam 1 Study Guide

What is cohesion adhesion and surface tension

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Unformatted text preview: can have a maximum of 8 e- . What is the valence shell, number of valence electrons, and valency (covalent bond potential)? Be able to make predictions from atomic number or mass number. How is valency related to electronegativity of an element and tendency to for ions (loss or gain of an e- to result in a cation or anion)? What are the most electronegative elements of life (biomolecules) What are possible electron orbitals and sp hybrid orbital? How does the latter relate to tetrahedral structure of certain molecules (water, ammonia, methane)? What is a covalent bond? Be able to predict possible covalent bonds between common elements of life (C, N, O, H)? Be familiar with elements that form non- polar versus polar covalent bonds. What are ionic bonds, hydrogen (H) bonds, and Van der Waals interactions? Why is water a polar molecule? What are the four properties of water important to life and how do they relate to H- bonds and energy? What is cohesion, adhesion, and surface tension? Familiarize yourself with the examples of these water properties and living organisms. What is the relationship between water temperature and the heat it can absorb or release? Know the difference between heat, temperature, and specific heat. Recall water has a high specific heat relative to rock, sand, or dry soil. Recall that water absorbing heat energy increases the breaking of H- bonds among water molecules, whereas more H- bonds form when heat is release from water. What is heat of vaporization, and how does this relate to evaporative cooling? How does heat removal from water relate t...
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This document was uploaded on 03/01/2014 for the course BIOL 1406 at Lamar University.

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