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Magnetite, an iron ore with formula Fe3O4, can be reduced by treatment with hydrogen to yield iron metal and water vapor.Write the balanced equation.
5. Classification & Balancing of Chemical Reactions
Types of Chemical Reactions
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If purple spheres represent iodine atoms, white spheres represent hydrogen atoms, and all the molecules are gases, (7.4, 7.5)Reactants 
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c. indicate the type of reaction as combination, decomposition, single replacement, double replacement, or combustion.
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