22. For a first order reaction, the general form of the rate law is
a. k
b.
k[A]
c. k[A]
2
d. k[A][B][C]
23. A catalyst
a. Raises the activation energy
b. Decreases the speed of the reaction
c.
Is chemically unchanged during the reaction
d. None of the above
24. Which has the highest electronegativity?
a. Tungsten
b. Cesium
c.
Chlorine
d. Germanium
25. Which has the lowest electron affinity?
a.
Potassium
b. Magnesium
c. Arsenic
d. Bromine
Give the Lewis Dot structures for the following compounds. (5 pts. each)
26.
H
O
2
..
H:O:H
¨
27.
SiF
–
notice that this is an exception to just about every rule of bonding and dot structures
6
because it involves super reactive FLUORINE!
..
..
: F: :F:
.. \ / ..
:F - Si - F:
¨ / \ ¨
:F:
:F:
¨
¨