Chemistry Practice Questions - Review Test #1
Try your skill.....test your knowledge.
Number your paper 1 - 15. All the following questions are multiple choice. Write your answer next to each number on your paper.
The answers to the questions are at the bottom of the quiz.
1. Which action will result in a product with new chemical properties?
| A. shredding a newspaper |
| B. breaking a mirror |
| C. cutting wood |
| D. popping popcorn |
2. Sterling silver is a combination of silver and copper. Which of the following is also a combination of two or more metals?
| A. aluminum |
| B. lead |
| C. gold |
| D. brass |
3. A metal spoon was left in a of boiling soup. The cook burned a finger by touching the spoon. Why did the finger get burned?
| A. The metal spoon chemically reacted with the cook's hand. |
| B. The metal spoon conducted electricity to the cook's hand. |
| C. The metal spoon conducted heat to the cook's hand. |
| D. The metal spoon insulated the cook's hand. |
4. A scientist needs to take a picture of the well-ordered arrangements of the atoms and molecules within a substance. Which of the following instruments would be BEST for the scientist to use?
| A. a laser light with holograph |
| B. a seismograph |
| C. an electron microscope |
| D. a stereoscope. |
5. The diagram below shows a mixture.
Which of the following pieces of equipment should be used to separate this mixture?
| A. magnet |
| B. balance |
| C. funnel |
| D. hot plate |
6. Which of the following is a property of CO2 gas?
| A. It feels like a rock. |
| B. It smells like a lemon. |
| C. It is colorless |
| D. It is hard. |
7. All living things contain which element?
| A. carbon |
| B. sodium |
| C. copper |
| D. hydrogen |
8. Which of the following gases do plants use in photosynthesis?
| A. hydrogen |
| B. carbon dioxide |
| C. carbon monoxide |
| D. oxygen |
9. A student added a small ball to a graduated cylinder containing 10 milliliters of water. The water level went up to 16.8 mL. What is the volume of the ball?
| A. 16.8 mL |
| B. 10 mL |
| C. 6.8 mL |
| D. 26.8 mL |
10. Of the ninety naturally occurring elements on the Earth, which of the following are the six essential elements for living organisms?
| A. carbon, iron, hydrogen, sodium, lead and mercury |
| B. carbon, oxygen, nitrogen, gold, silver and helium |
| C. carbon, hydrogen, nitrogen, oxygen, phosphorus and sulfur |
| D. carbon, hydrogen, nitrogen, oxygen, water and iron |
11. The most common state of matter in the universe is which of the following?
| A. plasma |
| B. liquid |
| C. solid |
| D. gas |
12. Under certain conditions, an atom may gain or lose and electron. This atom is now (a) an
| A. ion. |
| B. isotope |
| C. covalent molecule. |
| D. polar molecule |
13. The subatomic particles that carry a negative charge in the atom are
| A. neutrons |
| B. protons |
| C. electrons |
| D. quarks |
14. The number of neutrons in an atom of Fluorine is
| A. 10 |
| B. 19 |
| C. 7 |
| D. 9 |
15. Isotopes of the same element are different because
| A. their electron count can vary. |
| B. the number of electrons in the atom can vary. |
| C. they contain different amounts of neutrons in their nucleus. |
| D. they contain different amounts of protons in their nucleus. |
Answers:
|
# |
Answer |
|
1 |
D |
|
2 |
D |
|
3 |
C |
|
4 |
C |
|
5 |
D |
|
6 |
C |
|
7 |
A |
|
8 |
B |
|
9 |
C |
|
10 |
C |
|
11 |
A |
|
12 |
A |
|
13 |
C |
|
14 |
A |
|
15 |
C |