Answer:
The answer to your question is C, D, E, F, G, H, I, J
Explanation:
To know if a bond is nonpolar covalent we must calculate the difference of electronegativity if it is between 0 and 0.5, the bond is nonpolar.
A) N and H 3.04 - 2.2 = 0.84
B) N and H 3.04 - 2.2 = 0.84
C) C and H 2.55 - 2.2 = 0.35 Nonpolar covalent
D) C and N 3.04 - 2.55 = 0.49 Nonpolar covalent
E) C and C 2.55 - 2.55 = 0 Nonpolar covalent
F) C and C 2.55 - 2.55 = 0 Nonpolar covalent
G) C and H 2.55 - 2.2 = 0.35 Nonpolar covalent
H) C and H 2.55 - 2.2 = 0.35 Nonpolar covalent
I) C and H 2.55 - 2.2 = 0.35 Nonpolar covalent
J) C and H 2.55 - 2.2 = 0.35 Nonpolar covalent