Holt McDougal Modern Chemistry Chapter 8: Chemical Equations and 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. A reaction that occurs spontaneously is called what?

Question 2 2. Conservation of matter means that:

Question 3 3. Which of the following is a double-replacement reaction?

Question 4 4. What is a coefficient?

Question 5 5. Compound X is converted to elements A and B. Compound X has undergone a _____ reaction.

Page 2

Question 6 6. Which type of reaction always requires oxygen to be a reactant?

Question 7 7.

Choose the correctly balanced equation for the following reaction:

Sodium + water → sodium hydroxide + hydrogen gas

Question 8 8. When both the reactants and the products of a reaction exist simultaneously because both forward and reverse reactions are competing, you have a _____.

Question 9 9. Chemical reactions are _____.

Question 10 10. Which of the following is an example of a single replacement reaction?

Page 3

Question 11 11.

Choose the correctly balanced equation for the following reaction:

Potassium + water → potassium hydroxide + hydrogen gas

Question 12 12. Which of the following chemical equations shows the product of water reacting with potassium oxide?

Question 13 13. What does an activity series do?

Question 14 14.

Consider the reaction:

Mg +CuCl2 = MgCl2 + Cu

Which type of reaction is shown above?

Question 15 15. Identify which general equation is a combination reaction.

Page 4

Question 16 16.

What products would you expect from a reaction between HCl and KOH?

I. KCl

II. H2O

III. KH

Question 17 17. How is the activity of an element different for non-metals vs. metals?

Question 18 18. Which of the following equations is balanced?

Question 19 19. If dissolving carbon dioxide in water to form carbonic acid is the forward reaction, what is the reverse reaction that balances this reaction in chemical equilibrium?

Question 20 20. How is the activity series useful in predicting products?

Holt McDougal Modern Chemistry Chapter 8: Chemical Equations and 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!

Holt McDougal Modern Chemistry: Online Textbook Help  /  Science Courses
Support