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Also known as a synthesis reaction. One kind of frequently occurring combination reaction is the reaction of an element with oxygen to form an oxide. Under certain conditions, metals and nonmetals both react readily with oxygen. Once ignited, magnesium reacts rapidly and dramatically, reacting with oxygen from the air to create a fine magnesium oxide powder.
An oxidation-reduction (redox) reaction is a type of chemical reaction that involves a transfer of electrons between two species. An oxidation-reduction reaction is any chemical reaction in which the oxidation number of a molecule, atom, or ion changes by gaining or losing an electron. Redox reactions are common and vital to some of the basic functions of life, including photosynthesis, respiration, combustion, and corrosion or rusting.
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magnesium2Mg + O2 => 2MgO Mg + 2KHSO4 => H2 + K2SO4 + MgSO4 2HCl + Mg => H2 + MgCl2 View all equations with Mg as reactant
Oxygen; Oxygen molecule; Liquefied oxygen2Mg + O2 => 2MgO 2H2S + 3O2 => 2H2O + 2SO2 C + O2 => CO2 View all equations with O2 as reactant