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Question
Translate the following statement into a chemical equation and then balance the equation:
Aluminium metal replaces iron from ferric oxide, Fe2O3, giving aluminium oxide and iron.
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Solution
\[\ce{Al + Fe2O3 -> A2O3 + Fe}\]
Balanced equation:
\[\ce{2Al + Fe2O3 -> Al2O3 + 2Fe}\]
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| Reactants | Products | Types of chemical reaction | ||
| 1. | MgH2 | → | Mg + H2 | Endothermic |
| 2. | 2H2S + SO2 | → | 3S + 2H2O | Oxidation |
| 3. | CaO + H2O | → | Ca(OH)2 + heat | Exothermic |
| Redox | ||||
