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Further examples Aluminium oxide. Aluminium oxide (Al 2 O 3) is an amphoteric oxide; it can act as a base or acid. For example, with base different aluminate salts will be formed: Al 2 O 3 + 2 NaOH + 3 H 2 O → 2 NaAl(OH) 4 Silicon dioxide. Silicon dioxide is an acidic oxide. It will react with strong bases to form silicate salts.
Chemical reaction. A thermite reaction using iron (III) oxide. The sparks flying outwards are globules of molten iron trailing smoke in their wake. A chemical reaction is a process that leads to the chemical transformation of one set of chemical substances to another. [1] When chemical reactions occur, the atoms are rearranged and the reaction ...
Amphoterism. In chemistry, an amphoteric compound (from Greek amphoteros 'both') is a molecule or ion that can react both as an acid and as a base. [1] What exactly this can mean depends on which definitions of acids and bases are being used. One type of amphoteric species are amphiprotic molecules, which can either donate or accept a proton ...
A chemical substance is a unique form of matter with constant chemical composition and characteristic properties. [1] [2] Chemical substances may take the form of a single element or chemical compounds. If two or more chemical substances can be combined without reacting, they may form a chemical mixture. [3]
Reaction formation. In Sigmund Freud ’s psychoanalytic theory, reaction formation ( German: Reaktionsbildung) is a defense mechanism in which emotions and impulses which are anxiety -producing or perceived to be unacceptable are mastered by exaggeration of the directly opposing tendency. [1] [2] The reaction formations belong to Level 3 of ...
Sodium methoxide in solution, for example, is commonly used for this purpose, a reaction that is used in the production of biodiesel. Formation of oxo-alkoxides. Many metal alkoxide compounds also feature oxo-ligands. Oxo-ligands typically arise via the hydrolysis, often accidentally, and via ether elimination: [citation needed]
Reducing agent. In chemistry, a reducing agent (also known as a reductant, reducer, or electron donor) is a chemical species that "donates" an electron to an electron recipient (called the oxidizing agent, oxidant, oxidizer, or electron acceptor ). Examples of substances that are common reducing agents include hydrogen, the alkali metals ...
Organic chemistry has a strong tradition of naming a specific reaction to its inventor or inventors and a long list of so-called named reactions exists, conservatively estimated at 1000. A very old named reaction is the Claisen rearrangement (1912) and a recent named reaction is the Bingel reaction (1993).