Reactions Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

Page 1

Question 1 1. What is a coefficient?

Question 2 2. Conservation of matter means that:

Question 3 3. At the melting point and boiling point what happens?

Question 4 4. The phase change when a solid goes directly to a gas is called:

Question 5 5.

Choose the correctly balanced equation for the following reaction:

Sodium + water → sodium hydroxide + hydrogen gas

Page 2

Question 6 6. Gas can be turned into a plasma on Earth with the addition of:

Question 7 7. The phase change when gas turns directly into a solid is called:

Question 8 8. An example of condensation is:

Question 9 9. Which of the following equations is balanced?

Question 10 10.

Choose the correctly balanced equation for the following reaction:

Potassium + water → potassium hydroxide + hydrogen gas

Reactions Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

Physical Science: Middle School  /  Science Courses
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