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Silver white metal sticks out the copper wire. The initial colorless solution gradually turns blue. Copper pushed silver out of the silver nitrate solution and a part of copper was dissolved to produce a blue copper nitrate solution.
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.
A + BC → AC + B Element A is a metal in this general reaction and replaces element B, a metal in the compound as well. If the replacement element is a non-metal, it must replace another non-metal in a compound, and it becomes the general equation. Many metals easily react with acids, and one of the reaction products when they do so is hydrogen gas. Zinc reacts to the aqueous zinc chloride and hydrogen with hydrochloride acid (see figure below).
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silver nitrate2AgNO3 => 2Ag + 2NO2 + O2 2AgNO3 + H2O + HCHO + 3NH3 => 2Ag + 2NH4NO3 + HCOONH4 2AgNO3 + Cu => 2Ag + Cu(NO3)2 View all equations with AgNO3 as reactant
copperCu + 2H2SO4 => 2H2O + SO2 + CuSO4 2AgNO3 + Cu => 2Ag + Cu(NO3)2 3Cu + 4H2SO4 + 2NaNO3 => 4H2O + Na2SO4 + 2NO + 3CuSO4 View all equations with Cu as reactant
copperFe + CuSO4 => Cu + FeSO4 2Al + 3CuO => Al2O3 + 3Cu C + 2CuO => 2Cu + CO2 View all equations with Cu as product