Rank the bonds from most polar to least polar. a) C-O, C-F, C-N
b) C-CI, C-I, C-Br
c) H-O, H-N, H-C
d) C-H, C-C, C-N

Answers are in the explanation.

Explanation:

Polarity of a bond is due difference in electronegativity of the atoms that are bonding. The highest difference, the most polar bond.

Electronegativities:

O: 3.5

F: 4.0

N: 3.0

Cl: 3.0

I: 2.5

Br: 2.8

H: 2.1

C: 2.5

a)

Difference in electronegativity:

C-O = |2.5 - 3.5| = 1

C-F = 1.5

C-N = 0.5

The ranking is: C-F, C-O, C-N

b)

C-Cl = 0.5

C-I = 0

C-Br = 0.3

Ranking: C-Cl, C-Br, C-I

c)

H-O = 1.4

H-N = 0.9

H-C = 0.4

Ranking: H-C, H-N, H-O

d)

C-H = 0.4

C-C = 0

C-N = 0.5

Ranking: C-N, C-H, C-C

2h2o2--> 2h2o + o2

this reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

add 2 molecules of hydrogen peroxide and 2 molecules of water. since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

this may not be entirely correct but let me know.

the answer is the first option

explanation:

just googled it m8. not that hard

lol