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Question 4
Score for this quiz: 5 out of 5
Submitt.
This attempt took 99 minutes. B ‘ DC H EM M 9// Q U/ /
Question 1
0/0 pts
What is the shape of water?
Your Answer:
in th e ox yg en at om . Th e bo nd an gl e is 10 4. 5
un sh ar ed el ec tr on pa ir s
bent or V-shaped due to the
degrees.
Bent. Th e bo nd an gl e is 10 4. 5 de gr ee s.
rar
Question 2
oy
0/0 pts
and ho w is it imp ort ant for wa te r?
What is autoionization,
Your Answer:
t wi th its elf to fo rm io ns . On e wa te r mo le cu le re ac ts
Autoionization is th e ab il it y of a co mp ou nd to re ac
0+ an d OH -. Th es e io ns ex is t in sm al l am ou nt s in pu re
with a se co nd mo le cu le to fo rm tw o io ns : H3
water and influence the chemistry of water.
nd to re ac t wi th its elf to fo rm io ns . On e wa te r mo le cu le
Auto io ni za ti on is th e abi lit y of a co mp ou
io ns : H; 0* an d OH ". Th es e io ns ex is t in sm al l
reacts with a second molecule to form two
an d in fl ue nc e th e ch em is tr y of wa te r.
amounts in pure water
Question 3
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o v a l e n t fo rc es di sc us se d in th is mo du le .
Name the three non-c
Your Answer:
-Hydrogen boding
-Dipole-dipole forces
-London dispersion forces
1. Dipole-dipole forces , 2. Hyd rog en bon din g, and 3. Lon don dis per sio n for ces
, AN E———————
. pts
What type of non-covalent interaction is known as the strongest dipole-dipole force?
Your Answer:
Hydrogen bonds
hydrogen bonds.
Question 5
0/0pts
Would the fol low ing be a hy dr og en do no r or ac ce pt or ? Or bo th ?
H
\ .
/
Cc=0, .
H
Your Answer:
on s on th e ox yg en . It is no t a hy dr og en do no r be ca us e th e
hydr og en ac ce pt or on ly du e to th e el ec tr
to a ca rb on (n ee ds to be F, N, or O).
electrons are bonded
s on th e ox yg en . It is no t a hy dr og en do no r
Only a hydrogen acceptor due to the electron
og en at om s ar e bo nd ed to a ca rb on .
because the hydr
Question 6
0/0pts
wit h in cr ea si ng mo le cu la r we ig ht ? Ex pl ai n bri efl y.
How does the strength of London forces change
Your Answer:
re ng th of Lo nd on fo rc es als o in cr ea se . Thi s is du e to the in cr ea se d
As mo le cu la r we ig ht in cr ea se s, the st
cu le s. Th e lar ger nu mb er of el ec tr on s cr ea te s the po te nt ia l of st ro ng er
number of el ec tr on s in lar ger mo le
temporary dipoles.
Lo nd on fo rc es al so in cr ea se . Th is is du e to the
As molecular weight increase, the strength of
le s. Th e la rg er nu mb er of el ec tr on s cr ea te s the
increased number of electrons in larger molecu
potential of stronger temporary dipoles.