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  1. Acid | Definition, Examples, Types, Uses, & Facts | Britannica

    Dec 12, 2025 · An acid is any substance that in water solution tastes sour, changes blue litmus paper to red, reacts with some metals to liberate hydrogen, reacts with bases to form salts, and promotes …

  2. Acid (youtuber) - Wikipedia

    Het begon toen Acid een reactievideo maakte op een van hun populaire videoclips, wat ertoe leidde dat fans veel negatieve opmerkingen deelden. De vete kreeg veel media-aandacht en het koppel …

  3. ACID Definition & Meaning - Merriam-Webster

    The meaning of ACID is a sour substance; specifically : any of various typically water-soluble and sour compounds that in solution are capable of reacting with a base to form a salt, redden litmus, and …

  4. ACID | definition in the Cambridge English Dictionary

    Basic rocks with no quartz tend to be dark-colored, while acid rocks are much lighter. The solid matter ejected by a volcano covers all rock compositions from basic to acid.

  5. pH Scale: Acids, bases, pH and buffers (article) | Khan Academy

    Acidity and basicity, proton concentration, the pH scale, and buffers.

  6. What Is an Acid in Chemistry? | The Chemistry Blog

    Sep 24, 2025 · An acid is chemically reactive and, as a result, can corrode metals and produce exothermic reactions with bases. When an acid is dissolved in water, it dissociates into positively …

  7. acid noun - Definition, pictures, pronunciation and usage notes ...

    Definition of acid noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

  8. Acid - Wikiwand

    An acid is a molecule or ion capable of either donating a proton (i.e. hydrogen cation, H+), known as a Brønsted–Lowry acid, or forming a covalent bond with an ...

  9. ACID Definition & Meaning | Dictionary.com

    An acid is the opposite of a base and has a pH of 0 to 7. A given amount of an acid added to the same amount of a base neutralizes the base, producing water and a salt.

  10. Acid Definition & Meaning | Britannica Dictionary

    ACID meaning: 1 : a chemical with a sour taste that forms a salt when mixed with a base; 2 : lsd