Cân bằng các phản ứng hóa học sau:
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Bài 3: Cân bằng các phản ứng hóa học sau:
\[ \text{Fe}_x\text{O}_y + \text{H}_2\text{SO}_4 \rightleftharpoons \text{Fe}_2(\text{SO}_4)_{2y/x} + \text{H}_2\text{O} \]
\[ \text{Fe}_x\text{O}_y + \text{H}_2 \rightleftharpoons \text{Fe} + \text{H}_2\text{O} \]
\[ \text{Al}(\text{NO}_3)_3 \rightleftharpoons \text{Al}_2\text{O}_3 + \text{NO}_2 + \text{O}_2 \]
\[ \text{KMnO}_4 + \text{HCl} \rightleftharpoons \text{Cl}_2 + \text{KCl} + \text{MnCl}_2 + \text{H}_2\text{O} \]
\[ \text{Fe}_3\text{O}_4 + \text{Al} \rightleftharpoons \text{Fe} + \text{Al}_2\text{O}_3 \]
Bài 3: Cân bằng các phản ứng hóa học sau:
\[ \text{Fe}_x\text{O}_y + \text{H}_2\text{SO}_4 \rightleftharpoons \text{Fe}_2(\text{SO}_4)_{2y/x} + \text{H}_2\text{O} \]
\[ \text{Fe}_x\text{O}_y + \text{H}_2 \rightleftharpoons \text{Fe} + \text{H}_2\text{O} \]
\[ \text{Al}(\text{NO}_3)_3 \rightleftharpoons \text{Al}_2\text{O}_3 + \text{NO}_2 + \text{O}_2 \]
\[ \text{KMnO}_4 + \text{HCl} \rightleftharpoons \text{Cl}_2 + \text{KCl} + \text{MnCl}_2 + \text{H}_2\text{O} \]
\[ \text{Fe}_3\text{O}_4 + \text{Al} \rightleftharpoons \text{Fe} + \text{Al}_2\text{O}_3 \]