Chemistry

Can you please answer this question: Both water and carbon dioxide are triatomic molecules. Explain why one of these molecules is polar and the other is nonpolar?

Carbon dioxide is linear :C::O::C: and therefore has no net electrical dipole.

Water is a bent molecule , so the O side acts a negative, making the molecule polar.
http://library.tedankara.k12.tr/chemistry/vol2/hydrogen%20bonding/z20.jpg


CO2 is a linear molecule like this
O=C=O. The difference in electronegativity (EN) of the O and C makes the left O=C bond polar and the right C=O bond polar but the linear symmetry cancels each other and the molecule as a whole is not polar. That isn't so with the water molecule. It is not linear. It's tough to draw the structure on these boards but it looks something like this.
H
|
O - H.
Now the difference of one EN for O and H makes both bonds polar (as in the case of CO2) but the water molecule is not linear, hence it isn't symmetrical, and the two polar bonds don't cancel each other. That is to say that there is a net dipole moment.

why is water a bent molecule, but carbon dioxide is linear?

  1. 👍 0
  2. 👎 0
  3. 👁 565

Respond to this Question

First Name

Your Response

Similar Questions

  1. chemistry

    Question 1. A Compound Containing 3 Atoms Of Carbon & 8 Atoms Of Hydrogen Is Combined In A Reaction With Oxygen Molecules. The 2 End Products Of This Equation Are Carbon Dioxide &water. What Element Should You Look At 1st In

    asked by Jen on September 23, 2008
  2. Chemistry

    Question 1. A Compound Containing 3 Atoms Of Carbon & 8 Atoms Of Hydrogen Is Combined In A Reaction With Oxygen Molecules. The 2 End Products Of This Equation Are Carbon Dioxide &water. What Element Should You Look At 1st In

    asked by Jen on September 23, 2008
  3. Chemistry

    Question 1. A Compound Containing 3 Atoms Of Carbon & 8 Atoms Of Hydrogen Is Combined In A Reaction With Oxygen Molecules. The 2 End Products Of This Equation Are Carbon Dioxide &water. What Element Should You Look At 1st In

    asked by Mickeyv on July 8, 2008
  4. Chemistry

    Question 1. (SEE QUESTION 2 ) A Compound Containing 3 Atoms Of Carbon & 8 Atoms Of Hydrogen Is Combined In A Reaction With Oxygen Molecules. The 2 End Products Of This Equation Are Carbon Dioxide &water. What Element Should You

    asked by Mickeyv on July 8, 2008
  5. Chemistry

    A compound containg 3 atoms of carbon and 8 atoms of hydrogen is combined in a reaction with oxygen molecules. The two end products of this equation are carbon dioxide (CO2) and water. What element should you look at first in

    asked by Mickey on July 4, 2008
  6. Chemistry

    A compound containg 3 atoms of carbon and 8 atoms of hydrogen is combined in a reaction with oxygen molecules. The two end products of this equation are carbon dioxide (CO2) and water. What element should you look at first in

    asked by MV on July 4, 2008
  7. PHYSICS

    A gas cylinder contains a mixture of carbon dioxide and oxygen, which have different molecular masses. The contents of the cylinder are in thermal equilibrium. Which of the following statements is correct? Question 1 options: A)

    asked by Maggie on August 16, 2011
  8. chemistry

    a carbon containing 3 atoms of carbon and 8 atoms of hydrdren combinend in reactionwith oxygen molecules the 2 end products of this equation are carbon dioxide co 2 an water what element should i look at first inn this oxygen

    asked by andrea on May 12, 2008
  9. chemistry

    a compound containing 3 atoms of carbon and 8 atoms ofhydrgen is combined in a reaction with oxegyn molecules the two end products of this equation are carbon dioxide co 2 and water what elemement should i look at first in

    asked by andrea on May 12, 2008
  10. science( Please Check My Answer)

    Question: One of the largest cypress trees in Florida has a tree trunk diameter of about 3.5 m. What is the source of MOST of the carbon in the cypress tree's trunk? Answer choices: A. The tree created carbon during

    asked by Catarina on March 5, 2014

More Similar Questions