The balanced chemical reaction coefficients are 1, 1, 1 in the breakdown reaction of heating magnesium hydroxide to create water vapor and magnesium oxide.
The definition of a balanced chemical equation is one in which the number of atoms in the reactants and the result are equal.
Mg(OH)₂———- MgO + H₂0
is the chemical equation for the reaction that occurs when magnesium hydroxide is heated.
Since there is only one Mg atom on the reactant side, there are two O atoms on the same side.
O atoms on the reactant side = 2
Mg atoms on the reactant side = 1
O atoms on the product side = 2
O atoms on the product side = 2
The chemical equation above is therefore balanced.
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