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MTTC Physical Science: Chemical 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!

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Question 1 1. What kind of chemical reaction takes place in an electrochemical cell?

Question 2 2. What are all of the components of an electrochemical cell?

Question 3 3. What does it mean when the enthalpy change for a reaction is negative?

Question 4 4. Compound X is converted to elements A and B. Compound X has undergone a _____ reaction.

Question 5 5. If I have a reaction where 3 electrons are transferred, what should I do to the standard cell potential in the table?

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Question 6 6. What do the brackets indicate in an equilibrium equation?

Question 7 7. Donna noticed that as she was creating a solution, an acid was formed when a base gained a proton. Which of the following is Donna noticing?

Question 8 8. What is the equation for the equilibrium constant of the reaction nA + mB → xC + yD?

Question 9 9. Maria is conducting an experiment, and creates a substance that seems to be a proton acceptor as well as a proton donor. Which of the following would be the BEST for Maria to use in order to define what type of substance she has created?

Question 10 10. Calculate the value of the equilibrium constant, K, for the system below, if 0.0954 moles of CO2, 0.0454 moles of H2, 0.0046 moles of CO, and 0.0046 moles of H2O vapor were present in a 1.00 L reaction vessel at equilibrium.

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Question 11 11. How is reaction rate measured?

Question 12 12. According to Bronsted-Lowry, a conjugate base is:

Question 13 13. When a bond forms, energy is given off to the surroundings. This is an example of

Question 14 14. What is oxidation?

Question 15 15. What is chemical equilibrium?

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Question 16 16. Oxidation describes the process of:

Question 17 17. What is the difference between a straight chain compound and a branched compound?

Question 18 18. What is the function of an electrochemical cell?

Question 19 19. What is formed from a neutralization reaction?

Question 20 20. Which of the following statements best describes Le Chatelier's Principle?

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Question 21 21. Which of the following best defines the term 'aliphatic'?

Question 22 22. What makes the statement 'the presence of a catalyst will slow down a reaction' incorrect?

Question 23 23. Enthalpy change is

Question 24 24. Identify which general equation is a combination reaction.

Question 25 25. An endothermic reaction is:

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Question 26 26. Which of the following is a property of aliphatic hydrocarbons?

Question 27 27. If you wanted to decrease the rate of reaction, what action would you need to take?

Question 28 28. What does a positive cell potential tell you?

Question 29 29. What two metals are often used in electrochemical cells?

Question 30 30. In covalently bonded molecules, oxidation and reduction are determined by:

MTTC Physical Science: Chemical 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!

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