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Water Lab



This practice quiz is based on the Lab #2: Water. After thorough preparation for the first lab exam, to help test your readiness, quiz yourself and determine which concepts need more attention. The actual exam will not be the same as this one, however some questions may repeat. You may repeat taking this quiz. Questions will vary.
Please note that the actual lab exam will be mostly one word or short answers. For this quiz most questions are multiple choice because this computer corrected version will only count your answer as correct if your answer is exactly the same as the answer key. Therefore some correct answers may be marked wrong.


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15. When detergent was added to the water the floating pin dropped. How did the detergent cause this to happen?






16. What aspect of the structure of detergent makes it useful to wash oil off of dishes?





17. Which statement is true for ice interacting with liquid water?






18. Which substance is non-polar?





19. When you held the negatively charged rod up to the stream of water, the water bent toward the rod. Give the name for the property of water that caused it to bend.






20. What word means that water sticks to other water molecules?






21. What is the name for the property of water that causes the water to “ball-up” on the parafilm?






22. If a solution has a lower abundance of H+ (hydrogen ions) than OH- (hydroxyl ions) in solution we refer to it as being _______________.






23. A solution with the pH of 4 has ________ times higher H+ concentration than a solution with pH 6.






16:15 on 22 May 2013
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