Question

question 9 (0.5 points)
part 2 draw the attraction between a water molecule and a molecule of n₂o₄
h₂o has 2 polar covalent bonds with a δen = 1.24.
h₂o has 4 reds and is asymmetrical making it a polar/nonpolar (answer is 1) molecule.
each h has a 2 charge and the o has a 3 charge.
the strongest possible attractive force between these two molecules is 4.
a. nonpolar covalent b. polar covalent c. ionic d. polar
e. nonpolar f. 0.97 g. 0 h. 0.01 i. 0.94 j. 0.40
k. 1.24 l. diatomic m. bent n. pyramidal o. planar trigonal
p. tetrahedral q. symmetrical r. asymmetrical
s. londons t. dipole - dipole u. hydrogen bond v. ion - dipole
w. δ+ x. δ- y. no partial charge

Explanation:

• For 1: A molecule with polar bonds and asymmetry (like \(H_2O\) with its bent shape) is polar.
• For 2: In a polar \(H - O\) bond, hydrogen, being less electronegative than oxygen, has a partial positive (\(\delta+\)) charge.
• For 3: Oxygen, being more electronegative than hydrogen, has a partial negative (\(\delta-\)) charge in the \(H - O\) bond.
• For 4: \(N_2O_4\) is a polar molecule (since \(N - O\) bonds are polar and the molecule has a non - symmetrical structure in some cases, and \(H_2O\) is polar. The strongest force between two polar molecules is dipole - dipole force.

Answer:

1. D. polar
2. W. \(\delta+\)
3. X. \(\delta-\)
4. T. dipole - dipole