In the following pairs, which of these neutral atoms should be
smaller? Why? Use a model to explain your answer. Which one of them
should be more electronegative?
- C or O
- Mg or Ca
For each of the following pairs of quantities, tell which one is
larger and explain your answer. If they are equal, say so and
explain how you can tell. (“KE” means kinetic energy)
a) The rms velocity of nitrogen at 25 C or the rms velocity of
oxygen at 75 C.
b) The most probable KE for argon at 25 C or the most probable KE
for neon at 25 C.
c) The average velocity of hydrogen or the average...
For each of the following pairs of goods, which good would you
expect to have more elastic demand and why?
a) required textbooks or mystery novels?
b) Beethoven recordings or classical music recording in
general?
c) gasoline during the next month or gasoline during the next
year?
d) root beer or water?
For each of the following pairs of goods, which good would you
expect to have more elastic demand and why?
a. Required textbooks or mystery novels.
b. Tim McGraw music or country music recordings in general.
c. electricity during the next six months or electricity during
the next five years.
d. Coke or soda in general.
For each of the following pairs of goods, which good would
you expect to have more elastic demand.
Mansions or rental homes
Vanilla ice cream or desserts
Subway rides during the next 6
months or subway rides during the next 5 years
Pens in general or blue ballpoint
pens
For each of the following pairs of goods, which good would you
expect to have more elastic demand and why? • Required textbooks or
fictional novels [2 marks] • Allison Hinds music recordings or soca
music recordings in general [2 marks] • Airfare during the next 4
months or airfare during the next 5 years [2 marks] • Fruit juice
or water [2 marks]
Draw band structure diagrams for the following, highlighting on
each diagram the valence band, conduction band and the band
gap.
(a) Au,
(b) SiO2
(c) intrinsic Ge
(d) p-type Ge
(e) n-type Ge
On each of the band diagrams also indicate the probable location
of the Fermi level for (c), (d) and (e) at a temperature of 0
K.
For which one of the pairs of acids and bases does the following
represent the net ionic equation?
H3O+ +OH- ___ 2H2O a NaOH, HBr b CH3COOH, Ca(OH)2 c HNO3,
Mg(OH)2 d CH3COOH, Cu(OH)2 e CH3COOH, Cr(OH)3
Which of the following pairs compares the percentage change in
demand of one good to the percentage change in price of another and
the concept used to examine the percentage change in demand that
results from a percentage change in income.
Select one:
a. Cross elasticity of demand; price elasticity of demand.
b. Cross elasticity of demand; income elasticity of demand.
c. Price elasticity of demand; cross elasticity of demand.
d. Price elasticity of demand; income elasticity of demand.