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Physical Chemistry: Help & Review Final Exam

Free Practice Test Instructions:

Choose your answer to the question and click 'Continue' to see how you did. Then click 'Next Question' to answer the next question. When you have completed the free practice test, click 'View Results' to see your results. Good luck!

Question 1 1. What is the correct name for MgCl2?

Question 2 2. How many total dots should the diagram for silicon tetrahydride, SiH4 include?

Question 3 3. Which of the following best describes a spontaneous reaction?

Question 4 4. The entropy of a system decreases when:

Question 5 5. For a reaction to be spontaneous, the sign of delta G is:

Question 6 6. What determines the shapes that different types of crystalline solids can take?

Question 7 7. If oxygen with an electronegativity of 3.4 were to share electrons with lithium, electronegativity of 1.0, what kind of bond would form?

Question 8 8. How many elements are there?

Question 9 9. What is the triple point?

Question 10 10. Which of the following is an example of a compound?

Question 11 11. How many moles of solute are in a 0.50 L solution of 3.0 molarity?

Question 12 12. Cobalt-57 has a half-life of about 272 days. If a sample has an initial mass of 2.24 grams and undergoes decay until it has a mass of 0.140 grams, then how many half-lives passed?

Question 13 13. Two artifacts have recently been discovered. After testing, it is found that Artifact A has 20% of carbon-14 in it, while Artifact B has 35% of carbon-14 in it. Which of the two artifacts is the OLDEST?

Question 14 14. Select the most suitable definition for stoichiometry.

Question 15 15. What happens to the amount of usable energy in a system over time?

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Physical Chemistry: Help & Review Final Free Practice Test Instructions

Choose your answer to the question and click 'Continue' to see how you did. Then click 'Next Question' to answer the next question. When you have completed the free practice test, click 'View Results' to see your results. Good luck!

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