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Questions and Answers
Which of the following characteristics is associated with an acid?
Which of the following characteristics is associated with an acid?
- Red litmus paper turns blue
- Bitter taste
- pH level above 7
- Sour taste (correct)
What happens to blue litmus paper when it comes into contact with an acid?
What happens to blue litmus paper when it comes into contact with an acid?
- It remains blue
- It turns red (correct)
- It dissolves
- It turns green
Which example is not classified as a base?
Which example is not classified as a base?
- Toothpaste
- Detergent
- Baking soda
- Vinegar (correct)
What defines a solvent in a solution?
What defines a solvent in a solution?
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Which of the following statements about bases is true?
Which of the following statements about bases is true?
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Study Notes
Acids
- Blue litmus paper changes to red, indicating acidity.
- pH level is below 7, confirming the presence of an acid.
- Often has a sour taste, a characteristic feature of many acids.
- Common examples include lemon juice, vinegar, milk, and coffee.
Bases
- Red litmus paper turns blue, signaling a basic substance.
- pH level is above 7, indicating alkalinity.
- Typically has a bitter taste and a slippery, soapy feel.
- Common examples encompass baking soda, detergents, and toothpaste.
Solute
- Defined as a substance that gets dissolved in another substance.
- Common examples include sugar and salt, particularly in powdered form.
Solvent
- A substance that dissolves the solute, facilitating a solution.
- Water is the most commonly used solvent due to its universal solvent properties.
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Description
Test your knowledge on the properties of acids and bases! This quiz covers pH levels, indicators like litmus paper, and characteristics of solutes and solvents. Perfect for students learning about the fundamentals of chemistry.
