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Questions and Answers
What is a characteristic of acids?
What is a characteristic of acids?
- Tastes bitter
- Usually starts with 'H' (correct)
- Has a pH greater than 7
- Includes hydroxide ions
Which of the following statements about bases is true?
Which of the following statements about bases is true?
- They end with 'ic acid'.
- They taste sour.
- They usually have hydroxide ions. (correct)
- They conduct electricity poorly.
How much more acidic is a solution with a pH of 4 compared to a solution with a pH of 6?
How much more acidic is a solution with a pH of 4 compared to a solution with a pH of 6?
- 1,000 times more acidic
- 100 times more acidic (correct)
- 10,000 times more acidic
- 10 times more acidic
What does litmus paper indicate when it turns red?
What does litmus paper indicate when it turns red?
On the pH scale, what value represents a neutral solution?
On the pH scale, what value represents a neutral solution?
Flashcards
Acid
Acid
A substance that usually starts with 'H' (hydrogen) and ends with '...ic acid'. Acids have a sour taste, are corrosive, have a pH less than 7, and are good electrical conductors.
Base
Base
A substance that usually ends with 'OH' (hydroxide). Bases are bitter to the taste, have a pH greater than 7, and are good electrical conductors.
pH Scale
pH Scale
A scale used to measure the acidity or basicity of a solution. It ranges from 0 to 14, where 0 is the most acidic and 14 is the most basic.
pH Indicator
pH Indicator
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pH Scale Strength
pH Scale Strength
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Study Notes
Acids & Bases
- Acids: Typically begin with "H+" (hydrogen) and end with "...ic acid". Taste sour, are corrosive (can burn skin), and conduct electricity well
- Bases: Usually end with "OH-" (hydroxide). Taste bitter and conduct electricity better than acids
- pH Scale: Measures acidity/basicity of a solution. Neutral is 7, values below 7 are acidic, and above 7 are basic.
- pH Changes: Each whole number change on the pH scale represents a 10-fold change in strength. For example, a drop from pH 6 to 4 is a 100-fold increase in acidity (10²=100)
- Indicators: Chemicals that change color based on the pH of a solution. Examples include litmus paper (red=acidic, blue=basic) and universal indicators.
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Description
Test your knowledge on the properties of acids and bases, including their definitions, the pH scale, and the role of indicators. This quiz covers essential concepts in chemistry that are vital for understanding reactions and solution behavior. Perfect for students looking to reinforce their understanding of this fundamental topic.
