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Why is colour of copper sulphate blue?
The colour of Copper sulphate is blue because Copper ions absorb light in all frequencies except blue which is reflected instead.
What is the colour of an aqueous sodium bromide solution?
Colourless solution. most coloured solutions contain transition metal ions
What will be the colour of iron nail if it is added to cuso4?
Copper is deposited on the surface. This is an example of a single displacement reaction. Fe +CuSO4 -> Cu +FeSO4 the solution which started as blue (copper sulphate) becomes paler as the Copper ions, Cu2+ are replaced by ferrous ions, Fe2+ Iron is higher in the reactivity series than copper.
Why will iron displace copper from aqueous solutions of copper salts?
Because iron is more reactive than copper. If iron displaces copper, that releases energy (enthalpy). If copper were to displace iron, that would require energy to be used. This is less favourable and , averaged over the huge number of molecules, atoms and ions in the solution, the more energy producing reaction is vastly preferred. Hence, iron put into copper sulphate solution gets coated in copper and the solution slowly loses its blue colour. But if you put copper metal in iron sulphate solution, nothing noticable occurs.
What distinguishes a compound like copper sulfate from an ordinary mixture of copper powder sulfur?
There are two copper oxides. Copper I oxide (Cu2O) and copper II oxide (CuO) both contain copper and oxygen. Copper II oxide is a reddish solid and Copper II oxide is a black solid. Both are insoluble in water. Copper sulfate (CuSO4) contains copper, sulfur, and oxygen. It is most often found in its hydrated form as a blue solid, but allso occurs in its anhydrous form as a white solid. It is soluble in water.
What color would copper II nitrate burn?
Copper (II) Nitrate burns in a Green flame
Which metal will destroy the blue colour of Copper?
The metal that will destroy the blue colour of Copper ions is any metal above copper in the reactivity series, such as calcium.
Why is colour of copper sulphate blue?
The colour of Copper sulphate is blue because Copper ions absorb light in all frequencies except blue which is reflected instead.
What is the colour of zinc ions mixed with ammonia in phenolphthalein indicator?
The phenolphthalein indicator is pink in basic solutions.
Where does the sodium sulphate go when copper sulphate mixes with sodium hydroxide?
Nowhere. I assume you are talking about mixing solutions. The sodium ions and sulpahate ions remain in solution.
What Sample Solution Containing A Metal Ion Has A Green Colour. Since All Ni2 (aq) Solutions Have A Green Colour Does The Sample Solution Contain Ni2 Is The Correct?
No. Copper, iron, and chromium ions, among others, can also exhibit a green color in solution.
What color does copper nitrate burn in a flame test?
The colour of any sample containing copper ions burns with a bluish green flame in the flame test.
When iron nail is put into a beaker containing copper sulphate solution the blue colour of solution turns green why?
Iron is more reactive than copper and the ferrous (Fe++) ions will replace the copper (Cu++) ions in the sulphate. CuSO4 is blue, FeSO4 is green.
What is the colour of an aqueous sodium bromide solution?
Colourless solution. most coloured solutions contain transition metal ions
What elements are in copper carbide?
Copper carbide is a salt. As the element implies, the ions present are copper ions and carbide ions. Carbide ions are made of carbon atoms.
What will be the colour of iron nail if it is added to cuso4?
Copper is deposited on the surface. This is an example of a single displacement reaction. Fe +CuSO4 -> Cu +FeSO4 the solution which started as blue (copper sulphate) becomes paler as the Copper ions, Cu2+ are replaced by ferrous ions, Fe2+ Iron is higher in the reactivity series than copper.
How do you test for copper ions?
When copper react with sodium hydroxide, copper hydroxide is one of the products which has a distinct colour, so... 1) Add a few drops of dilute sodium hydroxide to the solution you wish to test for copper ions 2) If a blue precipitate forms (copper hydroxide is insoluble in water), then it's likely that copper ions are present 3) To confirm the presence of copper ions, add ammonia solution & if the precipitate dissolves, forming a deep blue solution, you know copper ions are present
