Chemical indicator and salts | Prep.1 | Unit 1 - Lesson 3 | Science

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John
English
College Students
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Summary
The lesson covers chemical indicators, specifically litmus and universal indicators, used to determine if substances are acidic or basic. It explains how indicators change color in response to pH levels, the importance of understanding acidity and alkalinity in chemistry, and introduces practical applications, such as using red cabbage as a natural indicator.
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