CHEM 280 MIDTERM FULLY SOLVED TEST
PAPER GRADED A+
◉ The correct multiplier for the prefix milli is:
a) 10^ -3
b) 10^ -6
c) 10^ -9
d) 10^ -12
e) none of the above.
Answer: a) 10^ -3
◉ Which statement would NOT be an example of "quantification"?
a. The newest model of that car gets five more miles per gallon than
last year's model.
b. The average high temperature this July was two degrees higher
than last year's average high temperature.
c. The price of milk went up ten cents per gallon.
d. The water in the swimming pool feels colder than it was yesterday.
e. none of the above.
,Answer: d. The water in the swimming pool feels colder than it was
yesterday.
◉ What is quantification?.
Answer: the determination of the absolute or relative abundance
(often expressed as a concentration) of one, several or all particular
substance(s) present in a sample.
◉ How many significant figures should be reported in the answer to
the following calculation?(4.00) ×× (11.1) =
a. 0
b. 2
c. 1
d. 3
e. none of the above.
Answer: d. 3
◉ How many significant figures should be reported in the answer to
the following calculation?
((37.57)(13.332)) divided by (6.0)
a. 3
,b. 2
c. 1
e. 4.
Answer: b. 2
◉ A solution is an example of a (an):
a. heterogeneous mixture.
b. homogeneous mixture.
c. element.
d. pure substance.
e. compound..
Answer: b. homogeneous mixture.
◉ The correct prefix for the multiplier 100 is:
a. nano.
b. mega.
c. centi.
d. hecto.
e. none of the above.
Answer: d. hecto.
, ◉ Which type of energy is associated with position?
a. electrical
b. kinetic
c. chemical
d. potential
e. none of the above.
Answer: d. potential
◉ A solid form of matter in which there is long range repeating
order is called ________.
a. fixed
b. amorphous
c. rigid
d. crystalline
e. none of the above.
Answer: d. crystalline
◉ When methane is burned with oxygen, the products are carbon
dioxide and water. If you produce 9 grams of water and 11 grams of
PAPER GRADED A+
◉ The correct multiplier for the prefix milli is:
a) 10^ -3
b) 10^ -6
c) 10^ -9
d) 10^ -12
e) none of the above.
Answer: a) 10^ -3
◉ Which statement would NOT be an example of "quantification"?
a. The newest model of that car gets five more miles per gallon than
last year's model.
b. The average high temperature this July was two degrees higher
than last year's average high temperature.
c. The price of milk went up ten cents per gallon.
d. The water in the swimming pool feels colder than it was yesterday.
e. none of the above.
,Answer: d. The water in the swimming pool feels colder than it was
yesterday.
◉ What is quantification?.
Answer: the determination of the absolute or relative abundance
(often expressed as a concentration) of one, several or all particular
substance(s) present in a sample.
◉ How many significant figures should be reported in the answer to
the following calculation?(4.00) ×× (11.1) =
a. 0
b. 2
c. 1
d. 3
e. none of the above.
Answer: d. 3
◉ How many significant figures should be reported in the answer to
the following calculation?
((37.57)(13.332)) divided by (6.0)
a. 3
,b. 2
c. 1
e. 4.
Answer: b. 2
◉ A solution is an example of a (an):
a. heterogeneous mixture.
b. homogeneous mixture.
c. element.
d. pure substance.
e. compound..
Answer: b. homogeneous mixture.
◉ The correct prefix for the multiplier 100 is:
a. nano.
b. mega.
c. centi.
d. hecto.
e. none of the above.
Answer: d. hecto.
, ◉ Which type of energy is associated with position?
a. electrical
b. kinetic
c. chemical
d. potential
e. none of the above.
Answer: d. potential
◉ A solid form of matter in which there is long range repeating
order is called ________.
a. fixed
b. amorphous
c. rigid
d. crystalline
e. none of the above.
Answer: d. crystalline
◉ When methane is burned with oxygen, the products are carbon
dioxide and water. If you produce 9 grams of water and 11 grams of
