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Questions and Answers
What is the purpose of red cabbage juice in chemistry experiments?
What is the purpose of red cabbage juice in chemistry experiments?
- To create a pH buffer solution
- To serve as an indicator for chemical reactions (correct)
- To catalyze oxidation reactions
- To test the reactivity of acids and bases
What happens when you mix soap with red cabbage juice?
What happens when you mix soap with red cabbage juice?
- The juice remains red
- The juice turns blue (correct)
- The juice turns yellow
- The juice turns green
What type of substance is red cabbage juice an example of?
What type of substance is red cabbage juice an example of?
- Base
- Acid
- Indicator (correct)
- Catalyst
What happens when you add fizzy lemonade to the blue-colored cabbage juice?
What happens when you add fizzy lemonade to the blue-colored cabbage juice?
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What is the purpose of using indicators like red cabbage juice in chemistry experiments?
What is the purpose of using indicators like red cabbage juice in chemistry experiments?
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Study Notes
red cabbage indicators
- red cabbage can be stored in vinegar, resulting in a red juice.
- when soap is mixed with the red cabbage juice, the color changes to blue.
- adding fizzy lemonade to the mixture changes the color back to red.
- the colors from plants that change color when mixed with different substances are called indicators.
- red cabbage juice exhibits this property, making it an indicator.
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