Oxidation is the reaction that occurs by adding oxygen to other materials, often in combination with water. Oxidation is commonly called rust, but this term technically only applies to iron. Oxidation can occur in a vari... More »

Transition metals such as iron, magnesium or chromium react to form varied colored compounds. Compounds of the same valence have color differences. The transition metals easily form alloys with themselves and other metal... More »

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Adding salts, oxidizers and acids to the water speeds up the process, causing rust to appear faster on the surface of the metal, according to the Seattle Post-Intelligencer. Rust occurs in the presence of iron, water and... More »

Not all metal rusts, but the metals that do rust do so because of an oxidation reaction between the metal and water and oxygen. Oxidation is the process by which a substance incorporates oxygen into its molecular structu... More »

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Rust on metal is caused by surface metal atoms and molecules forming metal oxides in the presence of oxygen and water. Iron is the most common material that rusts, forming iron oxides, but most other metals can rust as w... More »

In a reaction with KMnO4, alkenes undergo an oxidation reaction. KMnO4 is the chemical formula for potassium permanganate, with K representing the element potassium, Mn representing the element manganese and O representi... More »

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Carbon monoxide is a neutral molecule; the oxidation number or state of carbon is +2 and oxygen is -2. The two possible oxidation numbers for oxygen are -1 and -2; the oxidation state -1 occurs in peroxides and is fairly... More »