Chemistry Homework 6
Which atom in the C-F bond has a partial positive charge (δ⁺)? A) C B) F C) Both D) Neither
A) C
Which atom in the C-Br bond has a partial positive charge (δ⁺)? A) Br B) C C) Both D) Neither
B) C
Which atom in the O-H bond has a partial positive charge (δ⁺)? A) O B) H C) Both D) Neither
B) H
Which atom in the N-H bond has a partial negative charge (δ⁻)? A) H B) N C) Both D) Neither
B) N
Which atom in the S-O bond has a partial negative charge (δ⁻)? A) S B) O C) Both D) Neither
B) O
In a polar covalent bond, A) both atoms in the bond have the same level of electronegativity. B) one atom in the bond must have higher electronegativity than the other atom. C) one atom must be a H atom. D) both atoms in the bond must be metals.
B) one atom in the bond must have higher electronegativity than the other atom.
Based on their positions in the periodic table, which of the following bonds is the most polar? A) O - F B) C - F C) B - F D) F - F
C) B - F
Which of the following bonds is a polar covalent bond? A) Li - Cl B) Cl - Cl C) H - Cl D) Li - Li
C) H - Cl
Which diatomic molecule has the smallest dipole moment? A) F₂ B) O₂ C) N₂ D) H₂ E) All equal
E) All equal
Which of the following substances contains MOSTLY ionic bonding? A) LiF B) CO₂ C) AlCl₃ D) BeCl₂ E) Cu
A) LiF
Which one of the following is the most electronegative atom? A) C B) N C) O D) F
D) F
Draw the Lewis structure of CH₃F and then determine if the molecule is polar or nonpolar. A) Nonpolar B) Polar
Lewis Structure is F-C-HHH with F having 6 extra electrons B) Polar
Draw the Lewis structure of water (H₂O) and then determine if the molecule is polar or nonpolar. A) Nonpolar B) Polar
Lewis Structure is H-O-H with Oxygen having 4 extra electrons B) Polar
Draw the Lewis structure of carbon dioxide (CO₂) and then determine if the molecule is polar or nonpolar. A) Nonpolar B) Polar
Lewis Structure is O=C=O with both O having 4 extra electrons A) Nonpolar
Draw the Lewis structure of O₂ and then determine if the molecule is polar or nonpolar. A) Nonpolar B) Polar
Lewis Structure is O=O with both having 4 extra electrons A) Nonpolar
