chemistry

posted by .

Why do molecular compounds have low melting points and low boiling points relative to ionic substances?

  • chemistry -

    Most molecular compounds are composed of discrete molecules whereas ionic compounds are composed of a three dimensional array of ions. To melt an ionic compound the attractive forces of the crystal must be broken. There are some exceptions to this rule; e.g., diamond is very hard but it is composed of carbon in a network of covalent bonds.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. bonds!

    What evidence suggests that ionic bonds are strong?
  2. Chemistry

    what are two general properties of molecular compounds?
  3. Chemistry

    What is the charatteristic of covalent bonding meaining what happens and then what is the result from what happened (like does it form a molecule, compund, etc. . . Same thing for ionic bodnging The ionic part is discussed below. Look …
  4. CHEMISTRY

    list three differences between molecular and ionic compounds, and explain how they relate to the differences in bond types.....how do i relate to the differences in bond types?
  5. Chemistry

    I think I have identified these right but I am confused on the why part of my question. Am I on the right track or should I read some more?
  6. chemistry

    Many ionic compounds have high melting points because a lot of energy is required to break the strong ionic bonds. So after breaking the ionic bonds, the ionic compound becomes a liquid. How do you explain why the ionic compound also …
  7. Chemistry

    Explain why the melting points of ionic compounds and molecular compounds differ?
  8. organic chemistry

    How is overall molecular polarity affected by molecular symmetry (specifically shown for alkenes in book)?
  9. chemistry

    How is overall molecular polarity affected by molecular symmetry (specifically shown for alkenes in book)?
  10. chemistry

    When compared to compound B, compound A has lower melting and boiling points and vaporizes more readily. Is compound A an ionic compound or a molecular compound?

More Similar Questions