https://www.khanacademy.org/science/hs-chemistry/x2613d8165d88df5e:chemical-reactions/x2613d8165d88df5e:types-of-chemical-reactions/v/combination-and-decomposition-reaction-chemical-reactions-and-equations-chemistry-khan-academy 2020-07-02T12:24:36Z Combination and decomposition reaction Reactions in which many reactants combine to give one product are called combination reactions whereas, in decomposition one reactant breaks down in many products Ram Prakash video https://cdn.kastatic.org/googleusercontent/R9gDwoK_GKlAUm5WmBQULqZXe5Ez_hq-Ebn_a5Xy6ouF49haYD9FIc0yMKDy6hdUunfMYOQi-coYiHBquK2mV78 Combination and decomposition reaction Reactions in which many reactants combine to give one product are called combination reactions whereas, in decomposition one reactant breaks down in many products https://cdn.kastatic.org/ka-youtube-converted/6esN2vQCwrY.mp4/6esN2vQCwrY.mp4 770 Common chemical reactions https://www.khanacademy.org/science/hs-chemistry/x2613d8165d88df5e:chemical-reactions/x2613d8165d88df5e:types-of-chemical-reactions/v/simple-redox-reactions 2024-07-03T22:39:39.589282457Z Simple redox reactions An oxidation/reduction reaction (also known as a "redox" reaction) involves the transfer of electrons. The first definition of oxidation was indeed about oxygen, and meant that an element or compound gained oxygen atoms. However, we eventually came to understand that these chemical reactions frequently involved a transfer of electrons. When an atom loses electrons, it is oxidized. The atom that gains electrons is said to be reduced. Mahesh Shenoy video https://cdn.kastatic.org/ka_thumbnails_cache/66664bc7-2ce1-4385-a670-d59ce3706649_1280_720_base.png Simple redox reactions An oxidation/reduction reaction (also known as a "redox" reaction) involves the transfer of electrons. The first definition of oxidation was indeed about oxygen, and meant that an element or compound gained oxygen atoms. However, we eventually came to understand that these chemical reactions frequently involved a transfer of electrons. When an atom loses electrons, it is oxidized. The atom that gains electrons is said to be reduced. https://cdn.kastatic.org/ka-youtube-converted/JH4tn5dyXyE.mp4/JH4tn5dyXyE.mp4 775 Common chemical reactions https://www.khanacademy.org/science/hs-chemistry/x2613d8165d88df5e:chemical-reactions/x2613d8165d88df5e:types-of-chemical-reactions/v/single-replacement-reactions 2024-08-16T15:18:47.217883837Z Single replacement reactions When one element replaces another element in a compound, we call it a single replacement reaction. In these reactions, one atom loses electrons (oxidation) while another element gains those electrons (reduction), making them a form of a redox reaction. Learn to use the Activity Series, which ranks elements by their reactivity and helps predict if the reaction will occur. Mahesh Shenoy video https://cdn.kastatic.org/ka_thumbnails_cache/b0b1e8cf-9cb9-47d6-83a9-5468c15f9d1f_1280_720_base.png Single replacement reactions When one element replaces another element in a compound, we call it a single replacement reaction. In these reactions, one atom loses electrons (oxidation) while another element gains those electrons (reduction), making them a form of a redox reaction. Learn to use the Activity Series, which ranks elements by their reactivity and helps predict if the reaction will occur. https://cdn.kastatic.org/ka-youtube-converted/l1xCT77_UY4.mp4/l1xCT77_UY4.mp4 818 Common chemical reactions https://www.khanacademy.org/science/hs-chemistry/x2613d8165d88df5e:solutions-acids-and-bases/x2613d8165d88df5e:solubility/v/double-replacement-reactions 2024-08-16T15:18:47.217883837Z Double replacement reactions Double replacement reactions occur when two compounds exchange ions, forming two new compounds. The driving force in these reactions is often the formation of a precipitate, a gas, or water. A solubility chart is commonly used to predict whether a potential product will be insoluble and therefore precipitate out of solution. This allows us to determine if the reaction will actually occur. Mahesh Shenoy video https://cdn.kastatic.org/ka_thumbnails_cache/0918daf4-a77a-4427-a43c-53bae09bbd3f_1280_720_base.png Double replacement reactions Double replacement reactions occur when two compounds exchange ions, forming two new compounds. The driving force in these reactions is often the formation of a precipitate, a gas, or water. A solubility chart is commonly used to predict whether a potential product will be insoluble and therefore precipitate out of solution. This allows us to determine if the reaction will actually occur. https://cdn.kastatic.org/ka-youtube-converted/KDGDLsUN8TQ.mp4/KDGDLsUN8TQ.mp4 732 Common chemical reactions https://www.khanacademy.org/science/hs-chemistry/x2613d8165d88df5e:chemical-reactions/x2613d8165d88df5e:types-of-chemical-reactions/a/single-replacement-reactions 2021-04-29T08:02:59Z Single replacement reactions Definition of single replacement (or single displacement) reactions. Predicting and determining the products using the reactivity series.  article https://www.khanacademy.org/science/hs-chemistry/x2613d8165d88df5e:solutions-acids-and-bases/x2613d8165d88df5e:solubility/a/double-replacement-reactions 2021-04-29T07:59:00Z Double replacement reactions Definition and examples of double replacement reactions. Predicting and balancing neutralization and precipitation reactions.  article https://www.khanacademy.org/science/hs-chemistry/x2613d8165d88df5e:chemical-reactions/x2613d8165d88df5e:types-of-chemical-reactions/e/apply-synthesis-and-decomposition 2026-03-25T13:00:37.369559121Z Apply: synthesis, decomposition, and combustion reactions Apply your understanding of synthesis, decomposition, and combustion reactions in this set of free, standards-aligned practice questions. Allen Ruch exercise https://www.khanacademy.org/science/hs-chemistry/x2613d8165d88df5e:chemical-reactions/x2613d8165d88df5e:types-of-chemical-reactions/e/apply-single-replacement-reactions 2024-08-27T15:25:18.996551236Z Apply: single replacement reactions Apply your understanding of single replacement reactions in this set of free, standards-aligned practice questions. Allen Ruch exercise https://www.khanacademy.org/science/hs-chemistry/x2613d8165d88df5e:solutions-acids-and-bases/x2613d8165d88df5e:solubility/e/apply-double-replacement-reactions 2026-03-25T13:00:37.369559121Z Apply: double replacement reactions Check your understanding of double replacement and precipitation reactions in this set of free, standards-aligned practice questions. Allen Ruch exercise