The metal that will destroy the blue colour of Copper ions is any metal above copper in the reactivity series, such as calcium.
The colour of silver metal in water is whiteThe colour of copper nitrate in water is blue (due to the Cu++ ion).
The colour of Copper sulphate is blue because Copper ions absorb light in all frequencies except blue which is reflected instead.
Flame colours depend on just the metal ion. All copper compounds give the same colour, green.
blue
the color of Cu 2 atom is blueans2. Copper metal is an orange-brown colour. Many copper salts are green or blue.We cannot meaningfully talk of the colour of a copper atom.
Blue
Copper can turn greenish-blue when it reacts with acetic acid due to the formation of copper(II) acetate, which is a blue-green compound. This color change is a result of the oxidation of copper metal to copper ions in the presence of acetic acid.
Anhydrous copper(II) sulphate is white. When added to water, it forms a solution of CuSO4(aq) which is blue because of the Cu2+ ion, which is itself a transition metal ion.
Copper chloride solution typically appears blue or green in color.
A darker shade of blue.
Copper sulphate's colour is blue.
Copper sulfate solution starts of a blue colour. When Iron metal is added to the solution a REDOX reaction begins in which the copper is reduced (gains electrons) to become copper metal and the iron is oxidised (loses electrons) to become iron ions. When the iron ions go into solution, it will change to a green colour which is the colour of iron (II) sulfate. As a general principle, a more reactive metal will displace a less reactive metal from solution by the process described above.