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

    Oct 18, 2025 · What is an acid, as defined in chemistry? An acid is any substance that in water solution tastes sour, changes blue litmus paper to red, reacts with some metals to liberate …

  2. Acid - Simple English Wikipedia, the free encyclopedia

    The definition of an acid has changed as people discovered more about chemistry. Acids were originally grouped together by their properties: they taste sour, change the color of litmus …

  3. ACID Definition & Meaning - Merriam-Webster

    Not only does acid brighten your soup, but also balance the flavor including the saltiness that comes from the broth (store-bought chicken broth and stock, or bouillon, are typically high in …

  4. 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.

  5. 6.1: What is an Acid and a Base? - Chemistry LibreTexts

    Acids and bases neutralize each other. Hydrochloric acid is found in the stomach that helps digestion. Excess hydrochloric acid may cause acid burns—antacids like milk of magnesia are …

  6. 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.

  7. What Makes an Acid Acidic? The Chemistry Explained

    5 days ago · Learn the fundamental chemistry defining acids, how their strength is measured by dissociation, and how the logarithmic pH scale works.

  8. What Is an Acid in Chemistry? Definition and Examples

    Feb 14, 2023 · Learn what an acid is in chemistry. Get the acid definition and examples and learn about the properties of these compounds.

  9. What Is an Acid? Definition, Examples, and pH Scale

    Jul 30, 2025 · Acids are defined by their behavior in solution. One common definition, known as the Brønsted-Lowry theory, describes an acid as a substance capable of donating a proton, a …

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

    Sep 24, 2025 · What Is an Acid in Chemistry? Acids are one of the most important groups of chemicals, found everywhere from household products to industrial processes. They are …