Write the reaction equations for the interaction: a) aluminum with manganese oxide (4)
| September 18, 2021 | education
Write the reaction equations for the interaction: a) aluminum with manganese oxide (4) b) aluminum oxide with calcium c) aluminum oxide with carbon dioxide d) aluminum oxide with water
a) 4Al + 3MnO2 = 3Mn + 2Al2O3 – OBP, manganese is obtained in industry by the method of aluminothermy;
b) Al2O3 + 3Ca = 3CaO + 2Al – aluminum was formed in the process of redox reaction;
c) Al2O3 + 3CO2 = Al2 (CO3) 3 – compounds, aluminum carbonate was obtained;
d) Al2O3 + 6H2O = 2Al (OH) 3 + 3H2 – ОВР, a precipitate of aluminum hydroxide is precipitated.
The reaction records confirm the high chemical activity of the aluminum metal; aluminum oxide exhibits amphoteric properties.
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