<img src="https://d5nxst8fruw4z.cloudfront.net/atrk.gif?account=iA1Pi1a8Dy00ym" style="display:none" height="1" width="1" alt="" />
Dismiss
Skip Navigation

Molecular Compounds

Naming and properties of compounds that form from two or more nonmetallic elements,

Atoms Practice
Estimated3 minsto complete
%
Progress
Practice Molecular Compounds
 
 
 
MEMORY METER
This indicates how strong in your memory this concept is
Practice
Progress
Estimated3 minsto complete
%
Practice Now
Turn In
Bonded for Life

Bonded for Life

 

Credit: Spiffistan
Source: http://commons.wikimedia.org/wiki/File:Bdna_cropped.gif
License: CC BY-NC 3.0

This model represents part of a DNA molecule. Your life-and the lives of all other organisms–depend on molecular compounds such as DNA.

Why It Matters

  • The majority of your body consists of water. The other compounds that make up you and other living things are called biochemical compounds. They are placed in four classes: proteins, carbohydrates, lipids, and nucleic acids. DNA is classified as a nucleic acid.
  • All of these compounds in living things are molecular compounds. Molecular compounds form between nonmetallic elements that are held together by covalent bonds.
  • Credit: Ryan Somma
    Source: http://www.flickr.com/photos/ideonexus/7343716078/
    License: CC BY-NC 3.0

    3D model showing the covalent bonds in a water molecule [Figure2]

     

  • The nonmetal carbon is the basis of all biochemical compounds. Carbon can form covalent bonds with itself and many other atoms, creating an incredible array of biochemical molecules.
  • Review covalent bonds by watching this video: 

https://www.youtube.com/watch?v=6_YhSLnAmVo

Can You Apply It?

Learn more about covalent bonds and biochemical compounds at the links below. Then answer the questions that follow.

  1. What is covalent bonding?
  2. What’s the difference between polar and nonpolar covalent bonds?
  3. Define electronegativity. How is electronegativity related to the polarity of a covalent bond?
  4. The nature of covalent bonds influences the properties of covalent, or molecular, compounds. What are general properties of molecular compounds?
  5. Biochemical molecules often consist of many smaller molecular compounds, called monomers. The monomers are joined together in long chains by covalent bonds. What are the monomers of proteins? Of nucleic acids?
  6. Identify the general function of each of the four main classes of biochemical compounds.

Notes/Highlights Having trouble? Report an issue.

Color Highlighted Text Notes
Please to create your own Highlights / Notes
Show More

Image Attributions

  1. [1]^ Credit: Spiffistan; Source: http://commons.wikimedia.org/wiki/File:Bdna_cropped.gif; License: CC BY-NC 3.0
  2. [2]^ Credit: Ryan Somma; Source: http://www.flickr.com/photos/ideonexus/7343716078/; License: CC BY-NC 3.0

Explore More

Sign in to explore more, including practice questions and solutions for Valence Electrons.
Please wait...
Please wait...