Essay about Biology

2490 Words Dec 25th, 2014 10 Pages
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Essay Sample
Part II: For the following questions, provide your response in short-answer format (2–3 detailed sentences each). Use this Phase’s activities and resources to assist you in answering. 7. What is pH? a. pH is a measurement of hydrogen ion concentration. It measures rather the solution is acid, base, or neutral. 8. What is a base? a. Accepts hydrogen ions from another substance that have a pH>7. It taste bitter and feel slippery. 9. What is an acid? a. Component with a positive

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7. Explain the pH scale and how it is used to indicate acidic, alkaline, and neutral solutions.


8. What does it mean in terms of strength when the pH of an acid changes from 5 to 4?
Part II: For the following questions, provide your response in short-answer format (2–3 detailed sentences each). Use this Phase’s activities and resources to assist you in answering.
1. What is pH?
a. pH is a measurement of hydrogen ion concentration. It measures rather the solution is acid, base, or neutral.


2. What is a base?
a. Accepts hydrogen ions from another substance that have a pH>7. It taste bitter and feel slippery.


3. What is an acid?
a. Component with a positive or negative charge that break apart in water to form a hydrogen ion. (H+)


4. What does it mean if a solution has more hydrogen ions (H+)?
a. More acidic the solution is


5. What does it mean if a solution has more hydroxide ions (OH-)?
a. Basic


6. What does it mean if a solution is neutral?
a. The concentration of hydronium equals the concentration of hydroxide ions.


7. Explain the pH scale and how it is used to indicate acidic, alkaline, and neutral solutions.


8. What does it mean in terms of strength when the pH of an acid changes from 5 to 4?
Part II: For the following questions, provide your response in short-answer format (2–3 detailed sentences each). Use this Phase’s activities and resources to assist you in
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