Chem 104 Exam 2 Study Guide Complete Questions Full Solution

CHEM 104 EXAM 2 STUDY GUIDE COMPLETE QUESTIONS FULL SOLUTION
CHEM 104 EXAM 2 Practice SET 2026/2027
Accurate Results Approved A Questions and Answers
Verified Solutions Latest Update

Question:
2) The number of significant figures in the measurement of 45.030 mm is A) none. B) three. C) four.
D) five. E) six.

Answer:
D) five.



Question:
3) Which of the following examples illustrates a number that is correctly rounded to three
significant figures? A) 20.0332 grams to 20.0 grams B) 4.05438 grams to 4.054 grams C) 103.692
grams to 103.7 grams D) 109,526 grams to 109 500 grams E) 0.03954 grams to 0.040 grams

Answer:
A) 20.0332 grams to 20.0 grams



Question:
4) What is the correct answer for the calculation of a volume (in mL) with measured numbers?
28.58/16x8.02 A) 0.22 mL B) 14 mL C) 0.223 mL D) 14.3 mL E) 57 mL

Answer:
A) 0.22 mL



Question:
5) The correct answer for the addition of 7.5 g + 2.26 g + 1.311 g + 2 g is A) 10 g. B) 13 g. C) 13.0
g. D) 13.071 g. E) 13.1 g.

Answer:
B) 13 g.

,Question:
6) Which of the following measurements are NOT equivalent? A) 183 L = 0.183 kL B) 24 dL = 2.4
L C) 84 cm = 8.4 mm D) 25 mg = 0.025 g E) 150. ms = 0.150 s

Answer:
C) 84 cm = 8.4 mm



Question:
7) Which of the following is the largest unit? A) millimeter B) kilometer C) micrometer D)
decimeter E) meter

Answer:
B) kilometer



Question:
8) How many kilograms are in 30.4 lb? 1 kg = 2.20 lb A) 66.88 kg B) 66.9 kg C) 13.8 kg D) 67 kg
E) 14 kg

Answer:
C) 13.8 kg



Question:
9) A doctor's order is 0.125 g of ampicillin. The liquid suspension on hand contains 250 mg/5.0 mL.
How many milliliters of the suspension are required? A) 6.3 mL B) 0.0063 mL C) 0.0025 mL D) 3.0
mL E) 2.5 mL

Answer:
E) 2.5 mL



Question:
10) A nugget of gold with a mass of 521 g is added to 50.0 mL of water. The water level rises to a
volume of 77.0 mL. What is the density of the gold? A) 10.4 g/mL B) 0.0518 g/mL C) 19.3 g/mL D)

, 1.00 g/mL E) 6.77 g/mL

Answer:
C) 19.3 g/mL



Question:
11) A liquid has a volume of 34.6 mL and a mass of 46.0 g. What is the density of the liquid? A)
1.33 g/mL B) 1.00 g/mL C) 1330 g/mL D) 0.663 g/mL E) 0.752 g/mL

Answer:
A) 1.33 g/mL



Question:
12) What is the mass of 53 mL of ethanol, which has a density of 0.79 g/mL? A) 42 g B) 67.1 g C)
53 g D) 41.9 g E) 67 g

Answer:
A) 42 g



Question:
13) Blood is a(n) A) compound. B) heterogeneous mixture. C) element. D) homogeneous mixture.

Answer:
D) homogeneous mixture



Question:
14) Which of the following is an example of a physical change? A) converting water to hydrogen
and oxygen B) grinding coffee beans C) digesting a cheeseburger D) burning coal E) baking a cake

Answer:
B) grinding coffee beans