Question

1) identify the substance that conducts electricity

a)sugar dissolved in water

b)water

c)solid sugar

d)solid NaCl

e)Nacl dissolved in water

2) using periodic trends, place the follwing bonds in order of increasing ionic character

S-F Se-F O-F

3)Choose the bond below that is the strongest

a)N=O

b)N=N

c)N-I

d)N-O

e)N-S

Answer 1

e)Nacl dissolved in water

NaCl is dissolved in water to form ions .The flow of ions to produce electricity.

2.                           The electronegative difference

S-F                       4-2.58    = 1.42

Se-F                      4-2.55      = 1.45  

O-F                       4-3.5        = 0.5

bonds in order of increasing ionic character

Se-F>S-F>O-F

3.

N=N is strong bond because of more amount of energy is required to break the bond.

b)N=N