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  1. Chemical reaction | Definition, Equations, Examples, & Types

    Nov 30, 2025 · Burning fuels, smelting iron, making glass and pottery, brewing beer, and making wine and cheese are among many examples of activities incorporating chemical reactions that …

  2. chemical reaction - Students | Britannica Kids | Homework Help

    Chemical reactions abound in the natural world, changing the composition of matter within Earth, on its surface, and in the atmosphere, and driving a vast array of processes in living systems. …

  3. Oxidation-reduction reaction | Definition, Examples, & Facts

    Nov 13, 2025 · Both reciprocity and net change are illustrated below in examples of the three most common types of oxidation-reduction reactions.

  4. Chemical reaction - Energy, Reactants, Products | Britannica

    Nov 30, 2025 · Chemical reactions commonly need an initial input of energy to begin the process. Although the combustion of wood, paper, or methane is an exothermic process, a burning …

  5. Chemical reaction - Photolysis, Energy, Light | Britannica

    Oct 10, 2025 · One example, the decomposition of ozone to oxygen in the atmosphere, is mentioned above in the section Kinetic considerations. Another example is the synthesis of …

  6. How Do You Balance a Chemical Equation? | Britannica

    Some examples of chemical reactions you might know include rusting, created by the reaction of iron with water and oxygen, and soda losing its bubbles, caused when carbonic acid splits into …

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

    Nov 11, 2025 · A chemical change (that is, a chemical reaction) is one in which the organization of the atoms is altered. An example of a chemical reaction is the burning of methane in the …

  8. Chemical energy | Definition & Facts | Britannica

    Burning fuels, smelting iron, making glass and pottery, brewing beer, and making wine and cheese are among many examples of activities incorporating chemical reactions that have …

  9. Hydrolysis | Definition, Examples, & Facts | Britannica

    Oct 14, 2025 · Burning fuels, smelting iron, making glass and pottery, brewing beer, and making wine and cheese are among many examples of activities incorporating chemical reactions that …

  10. Chemical reaction - Precipitation, Reactants, Products | Britannica

    Nov 30, 2025 · For example, magnesium burns in oxygen to form magnesium oxide (MgO). The product is an ionic compound, made up of Mg 2+ and O 2− ions. The reaction occurs with …