Write the reaction equation: CuO- CuCl2- Cu (OH) 2- CuO
| September 2, 2021 | education
1. Interaction of oxide with hydrochloric acid – salt formation. Exchange reaction.
CuO + 2HCl = CuCl2 + H2O.
2. Reaction of copper chloride with alkali – a precipitate is formed in the form of an insoluble base. Exchange reaction.
CuCl2 + 2NaOH = Cu (OH) 2 + 2NaCl.
3. Decomposition reaction. Powdered copper hydroxide decomposes at 200 ° C, and in the form of a suspension at 40-80 ° C.
Cu (OH) 2 = CuO + H2O.
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