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30 cze 2023 · For example, if you react copper(I) oxide with hot dilute sulfuric acid, you might expect to get a solution of copper(I) sulfate and water produced. In fact you get a brown precipitate of copper and a blue solution of copper(II) sulfate because of the disproportionation reaction.
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1 kwi 2017 · By burying the copper wire with plenty of sulfur and then heating the mix, the wire becomes completely submerged in liquid sulfur. The liquid sulfur then gets to react with the copper, and any oxygen that could possibly oxidize the copper would have to diffuse into the liquid sulfur before reaching the copper.
Chemistry covered. • Redox reactions: copper metal loses electrons sulfur to fom copper(I) sulfate and to nitric acid to produce copper(II) nitrate and nitric oxide. • Replacement reactions: when copper reacts with nitric acid, the hydrogen in the acid is replaced with a copper ion.
Students remove the water of crystallisation from hydrated copper (II) sulfate by heating. Condensing the vapour produced in a second test tube collects the water. The white anhydrous copper (II) sulfate is then rehydrated and the blue colour returns.
30 cze 2023 · As mentioned earlier, many Group 1 and Group 2 oxides react with water to form metal hydroxides. The nonmetal oxides react with water to form oxoacids. Examples include phosphoric acid and sulfuric acid.
For example, if you react copper(I) oxide with hot dilute sulphuric acid, you might expect to get a solution of copper(I) sulphate and water produced. In fact you get a brown precipitate of copper and a blue solution of copper(II) sulphate because of the disproportionation reaction.
Redox reactions: Copper metal loses electrons sulfur to fom copper (I) sulfate and to nitric acid to produce copper (II) nitrate and nitric oxide. Replacement reactions: When copper reacts with nitric acid, the hydrogen in the acid is replaced with a copper ion.
