Name:___________________________ Date ...



Name:___________________________ Date: __________________ Period: _____________

Water, pH, Buffers Review Guide

Directions: Answer the following question using complete sentences

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1. Why does Ice float?

2. What kinds of bonds make water most dense?

3. What does water do that makes us need it to survive?

4. Explain what polar molecule does to be attracted to other polar molecules?

5. Give an example of two substances that are hydrophobic

6. Give an example of two substances that are hydrophilic.

7. How do cells handle when acid or base is added to their environment?

8. Why do living things like humans need buffers in their system?

9. What happens to the electrons in a hydrogen bond?

10. What is the name of the buffer system found in the human blood?

11. What would the buffer system in the blood do if the pH in the blood drops?

12. Acids are substance that release ________ ________ when dissolved in water.

13. Bases increase the _____________ concentration when dissolved in water.

14. Name two types of compounds that dissolve in water and explain why.

15. What makes water a polar molecule?

16. What property of water gives it a high heat of vaporization?

17. Name the property of water that enables bugs to walk on it.

18. Name property of water that keeps lakes and oceans from freezing solid.

19. Name property of water that helps plants transport it through its different parts.

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20. Explain what you see in the image above.

21. What is the control of an experiment?

22. What are the constants of an experiment?

23. ___________ is where one water molecule is attracted to another water molecule.

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