Practice Test 1, CHEM 1101
The real test will include 20 multiple choice questions, 3 calculations for whichwork must be shown.
Bring number 2 pencils (mechanical pencils are ne), an eraser, and your calculator
Good luck on your exam!
1. Which one of the following is a mixture?
a. an aqueous solution of sugar
b. pure water
c. table salt (sodium chloride)
d. Oxygen gas
e. copper metal
2. Which of the following is an element?
a. 𝐶𝑙2
b. 𝐻2𝑂
c. HCl
d. NaCl
e. KCl
3. Which of the following is a homogeneous mixture?
a. Saltwater
b. Chichen noodle soup
c. Clouds
d. Sugar
e. Chocolate chip cookie
4. Which of the following is a heterogeneous mixture?
a. Air
b. Table salt
c. Gold
d. Gatorade
e. Salad dressing
