Which compound contains only nonpolar covalent bonds?
o2
co2
h2o
no3

O2 because the electronegativity of both oxygen atoms is the same, so there's no degree of unequal electron sharing since both molecules attract them equally

I believe the correct answer from the choices listed above is the first option. O2 is the compound that contains only nonpolar covalent bonds. It is nonpolar since it does not have unequal distribution of charges. Hope this answers the question. Have a nice day.

the catch is that the top numbers are atomic masses the bottom numbers are the numbers of protons and electrons in an uncharged atom. they are the number of that atoms as you would find them on the periodic table. further, the numbers on the left are used to determine the missing numbers on the right

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer