Build the metal-base oxide-salt-base-base oxide genetic chain.
| January 15, 2021 | education
Explanation of the solution to the problem: we will compose a genetic chain using calcium and its compounds as an example.
1. Interaction of calcium with oxygen with the formation of calcium oxide: 2Ca + O2 = 2CaO;
2. Interaction of calcium oxide with hydrochloric acid with the formation of salt and water: CaO + 2HCl = CaCl2 + H2O;
3. Interaction of calcium chloride with potassium hydroxide with the formation of calcium hydroxide insoluble in water: CaCl2 + 2KOH = Ca (OH) 2 + 2KCl;
4. Thermal decomposition of calcium hydroxide with the formation of calcium oxide: Ca (OH) 2 = CaO + H2O.
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