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  2. Chemical indicator | Definition, Examples, & Facts | Britannica

    www.britannica.com/science/chemical-indicator

    A chemical indicator is a substance that changes colour or other property to indicate the presence or absence of a chemical species, such as an acid or an alkali. Learn about different types of indicators, their applications, and how they work with examples from Britannica.

  3. Indicators - Chemistry LibreTexts

    chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook...

    Indicators are substances that change color due to changes in pH. They are usually weak acids or bases, and their color depends on their ionization equilibrium constant (Kai). Learn how to use indicators for acid-base titrations and see examples of natural indicators.

  4. What Is a Chemical Indicator? - ThoughtCo

    www.thoughtco.com/definition-of-indicator-605239

    Chemical indicators are substances that change color, shape, or other properties when conditions in a solution change. Learn how indicators are used in pH tests, titrations, fluorescence, and more.

  5. Chemical Indicators: Definition, Examples, Types, Uses

    chemistrypubs.com/chemical-indicators-definition-examples-types-uses

    Learn what chemical indicators are, how they change color in acidic or basic solutions, and what types and uses they have. Find out the mechanism, characteristics, and importance of acid-base indicators in chemistry.

  6. 21.20: Indicators - Chemistry LibreTexts

    chem.libretexts.org/Bookshelves/Introductory_Chemistry/Introductory_Chemistry...

    An indicator is a weak acid that changes color depending on the pH of the solution. Learn how indicators work, see different types of indicators, and find out how to use them for titrations and pH tests.

  7. What Is a pH Indicator? Definition and Examples - ThoughtCo

    www.thoughtco.com/definition-of-ph-indicator-605499

    A pH indicator is a compound that changes color in solution over a narrow range of pH values. Learn how pH indicators work, what they are made of, and how they are used in chemistry.

  8. Acid and Base Indicators - Chemistry LibreTexts

    chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook...

    Learn how acid-base indicators change color in response to pH levels. See examples of indicators such as litmus, phenolphthalein, and bromophenol blue, and how they work on a molecular level.

  9. Indicator - Vocab, Definition, and Must Know Facts | Fiveable

    library.fiveable.me/key-terms/ap-chem/indicator

    An indicator is a substance that changes color or other properties when it reacts with specific substances in solutions. Learn how indicators are used in titrations to determine reaction completion in AP Chemistry.

  10. Indicators - Vocab, Definition, and Must Know Facts - Fiveable

    library.fiveable.me/key-terms/intro-chem/indicators

    Intro to Chemistry. Definition. Indicators are substances that change color at a specific pH level, used to determine the endpoint of a titration. They help in identifying the equivalence point in chemical reactions. congrats on reading the definition of indicators. now let's actually learn it.

  11. Indicators | CHEM101 ONLINE: General Chemistry - Lumen Learning

    courses.lumenlearning.com/umes-cheminter/chapter/indicators

    Learn how indicators work as weak acids that change color in different pH ranges. See examples of indicators and how to use them in acid-base experiments and titrations.