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Hydrogen Bonds

Hydrogen Bonds

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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found in your textbook. acteristics can be Hydrogen Bonds When two hydrogen atoms react with an oxygen atom to form water, there is an unequal sharing of electrons among the atoms. This creates a slightly negative charge on the side of the water molecule that has more of the "electron cloud." Water molecules act like a bunch of magnets holding on to each other by the attractions between the + and – ends. This attraction between water molecules is a called a hydrogen bond. In physics, the term for the force that holds molecules of substance together is called cohesion. Hydrogen bonds are the cohesive force holding water molecules together as a liquid, and that is the secret to water's special properties. 1. As water falls from the clouds, what force keeps the water in drops? 2. In order for the liquid water to evaporate and become steam, heat must be added. In a pan of boiling water, what bond is being broken by the heat of the stove? 3. So, if heat is required to evaporate water, then what is released when water condenses as hydrogen bonds form? 4. On a calm, but rainy day, the temperature rises slightly when it starts to rain. Explain.
Transcribed Image Text:found in your textbook. acteristics can be Hydrogen Bonds When two hydrogen atoms react with an oxygen atom to form water, there is an unequal sharing of electrons among the atoms. This creates a slightly negative charge on the side of the water molecule that has more of the "electron cloud." Water molecules act like a bunch of magnets holding on to each other by the attractions between the + and – ends. This attraction between water molecules is a called a hydrogen bond. In physics, the term for the force that holds molecules of substance together is called cohesion. Hydrogen bonds are the cohesive force holding water molecules together as a liquid, and that is the secret to water's special properties. 1. As water falls from the clouds, what force keeps the water in drops? 2. In order for the liquid water to evaporate and become steam, heat must be added. In a pan of boiling water, what bond is being broken by the heat of the stove? 3. So, if heat is required to evaporate water, then what is released when water condenses as hydrogen bonds form? 4. On a calm, but rainy day, the temperature rises slightly when it starts to rain. Explain.
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