Biological Science

Chapter 2: The Atoms and Molecules of Ancient Earth

Content Review

This is an on-line version of the same Content Review questions included at the end of the chapter in your textbook. Use this version to quickly and easily submit your work to your instructor or teaching assistant.

1. Which of the following occurs when a covalent bond forms?  

2. If a reaction is exothermic, then which of the following statements is true?  

3. What is thermal energy? (Select all that apply.)  

4. What determines whether a chemical reaction is spontaneous?  

5. Which of the following is an example of an energy transformation?  

6. What does the phrase "LEO the lion goes GER" stand for?  

7. When a compound is reduced, it  

8. What property defines acids and bases?  

9. Which of the following best describes a polar substance?  

Some questions in this exercise may have more than one correct answer. And answer choices in this exercise are randomized and will appear in a different order each time the page is loaded.
 




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