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Note the transfer of electrons from Fe to Cl. Decomposition is also a way to simplify the balancing of a chemical equation. A chemist can atom balance and charge balance one piece of an equation at a time. For example: Fe 2+ → Fe 3+ + e − becomes 2Fe 2+ → 2Fe 3+ + 2e −; is added to Cl 2 + 2e − → 2Cl −; and finally becomes Cl 2 ...
2 Al + 3 Cl 2 → 2 AlCl 3 2 Al + 6 HCl → 2 AlCl 3 + 3 H 2. Aluminium chloride may be formed via a single displacement reaction between copper(II) chloride and aluminium. 2 Al + 3 CuCl 2 → 2 AlCl 3 + 3 Cu. In the US in 1993, approximately 21,000 tons were produced, not counting the amounts consumed in the production of aluminium. [7]
The halogens can all react with metals to form metal halides according to the following equation: 2M + nX 2 → 2MX n. where M is the metal, X is the halogen, and MX n is the metal halide. Sample of silver chloride. In practice, this type of reaction may be very exothermic, hence impractical as a preparative technique.
A chemical equation is the symbolic representation of a chemical reaction in the form of symbols and chemical formulas.The reactant entities are given on the left-hand side and the product entities are on the right-hand side with a plus sign between the entities in both the reactants and the products, and an arrow that points towards the products to show the direction of the reaction. [1]
A single-displacement reaction, also known as single replacement reaction or exchange reaction, is an archaic concept in chemistry. It describes the stoichiometry of some chemical reactions in which one element or ligand is replaced by an atom or group. [1] [2] [3] It can be represented generically as: + +
2 Al(alloy) + AlCl 3 (gas) → 3 AlCl(gas) It then disproportionates into aluminium melt and aluminium trichloride upon cooling to 900 °C. This molecule has been detected in the interstellar medium , where molecules are so dilute that intermolecular collisions are unimportant.
The only stable chalcogenides under normal conditions are aluminium sulfide (Al 2 S 3), selenide (Al 2 Se 3), and telluride (Al 2 Te 3). All three are prepared by direct reaction of their elements at about 1,000 °C (1,832 °F) and quickly hydrolyse completely in water to yield aluminium hydroxide and the respective hydrogen chalcogenide .
Chemistry portal This category contains articles on the various formulas used to express information about the atoms that constitute a particular chemical compound . Subcategories