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  1. Chemical compound | Definition, Examples, & Types | Britannica

    Nov 11, 2025 · All the matter in the universe is composed of the atoms of more than 100 different chemical elements, which are found both in pure form and combined in chemical compounds.

  2. What Is a Compound in Chemistry? Definition and Examples

    Oct 24, 2020 · In chemistry, a compound is a substance made of two or more elements chemically bonded to each other in a fixed ratio. The chemical bonds between atoms of …

  3. Chemical compound - Wikipedia

    There are four major types of compounds, distinguished by how the constituent atoms are bonded together. Molecular compounds are held together by covalent bonds, ionic compounds are …

  4. Compound: Definition, Properties, Types, and Examples

    A chemical compound is a pure substance made of two or more different elements that are chemically combined in a fixed ratio. The atoms in a compound are bonded together by strong …

  5. What is Compound: Types, Properties, Example - Scienly

    Nov 15, 2025 · Definition of compound: In chemistry, a compound is a pure substance that is composed of two, or more different elements, chemically combined with one another in a …

  6. What Are Compounds and How Do They Form? - ScienceInsights

    Sep 20, 2025 · In a compound, atoms are chemically bonded in fixed ratios, forming a new substance with unique properties. For example, water (H₂O) is a compound because hydrogen …

  7. Molecules and compounds overview - Khan Academy

    Much of the study of chemistry, however, involves looking at what happens when atoms combine with other atoms to form compounds. A compound is a distinct group of atoms held together …

  8. Definition of compound - Chemistry Dictionary

    A compound is a substance formed when two or more chemical elements are chemically bonded together. In mixtures, the substances present are not chemically bonded together.

  9. Compound - Definition, Characteristics, Formation and Examples

    Dec 1, 2025 · A compound is a substance that contains two or more elements chemically combined in a fixed proportion. The elements carbon and hydrogen combine to form many …

  10. Science Trek | Compounds: Compound Basics | PBS

    Every Monday Science Trek releases a new video that introduces children to math, science, technology, engineering, and math (STEM) career potentials in a fun, informative way. Learn …