Campbell Biology
Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
bartleby

Videos

Textbook Question
Book Icon
Chapter 3, Problem 3.1CR

DRAW IT Ø Label a hydrogen bond and a polar covalent bond in the diagram of live water molecules. Is a hydrogen bond a covalent bond? Explain.

Expert Solution
Check Mark
Summary Introduction

To label: The hydrogen bond and covalent bonds in water molecules.

Introduction:

Water is a polar molecule consisting of an oxygen atom and two hydrogen atoms.

Explanation of Solution

Water (H2O) consists of an oxygen atom and two hydrogen atoms. Hydrogen and oxygen share their valence electrons to form a strong bond that known as a covalent bond (Fig.1). As oxygen is more electronegative than hydrogen, the shared electrons in the H-O bond tend to be pulled towards the oxygen atom. There are two regions of partial negative charge on oxygen and a partial positive charge on each hydrogen atom. Thus, the covalent bond between H-O in the water molecule is a polar bond.

Water is a polar molecule due to the difference in electronegativity between O and H atoms. The partial negatively charged oxygen atom of a water molecule is attracted to the partial positively charged hydrogen atom of an adjacent water molecule (Fig.1). This forms the hydrogen bond among different water molecules.

Pictorial representation:

Campbell Biology, Chapter 3, Problem 3.1CR

Fig. 1 Interactions among water molecules

Expert Solution
Check Mark
Summary Introduction

To explain: The hydrogen bonds are not covalent bonds.

Introduction: Covalent bonds are formed by the sharing of valence electrons between two atoms. Hydrogen bonds are formed due to the attraction between two adjacent atoms due to partial charges.

Explanation of Solution

Covalent bonds are strong bonds, formed by the sharing of electrons between atoms. Hydrogen bonds do not involve the sharing of valence electrons. They are formed on the basis of attraction due to partial charges on neighboring atoms, and are hence very weak bonds. Therefore, a hydrogen bond is not a covalent bond.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
Match the following terms (A to F) with the statements (i – vi) below by selecting from the drop-down menus. Each choice may be used once, more than once, or not at all. A nonpolar covalent bond B polar covalent bond C ionic bond hydrogen bond E hydrophobic interaction F All of the above (1) Explains most specifically the attraction of water molecules to each other (i) Important for self-assembly of membranes (iii) Important in large biological molecules (iv) Joins backbone atoms in fatty acids (v) Easily disrupted in presence of water (vi) Important for alpha helix and beta sheet formation in proteins
Draw a “dot & cross” diagram to show the shape of a water molecule (H2O). Bond angles need to be shown. State the shape of a water molecule.
At which pH would the structure shown be predominate? H₂N-CH- - H OpH 1 pH 3 pH 8 pH 11 0 0

Additional Science Textbook Solutions

Find more solutions based on key concepts
Knowledge Booster
Background pattern image
Biology
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
  • Text book image
    BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
    Biology
    ISBN:9781305967359
    Author:STARR
    Publisher:CENGAGE L
    Text book image
    Human Biology (MindTap Course List)
    Biology
    ISBN:9781305112100
    Author:Cecie Starr, Beverly McMillan
    Publisher:Cengage Learning
    Text book image
    Biology 2e
    Biology
    ISBN:9781947172517
    Author:Matthew Douglas, Jung Choi, Mary Ann Clark
    Publisher:OpenStax
  • Text book image
    Anatomy & Physiology
    Biology
    ISBN:9781938168130
    Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
    Publisher:OpenStax College
Text book image
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Biology
ISBN:9781305967359
Author:STARR
Publisher:CENGAGE L
Text book image
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
Text book image
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Text book image
Anatomy & Physiology
Biology
ISBN:9781938168130
Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
Publisher:OpenStax College
GCSE Chemistry - Acids and Bases #34; Author: Cognito;https://www.youtube.com/watch?v=vt8fB3MFzLk;License: Standard youtube license