0
When zinc metal is placed into a solution of copper sulphate a pinky brown metal is formed but when a piece of silver metal is placed into another solution of copper sulphate no change is observed Why?
Wiki User
∙ 15y ago
Silver is lower in the reactivity series than Zinc and therfore cannot displace the Sulphate from the Zinc.
But on the other hand zinc is higher than copper, and when displacing the sulphate from the copper it changes colour due to the reaction.
Reactivity series(metals):
Potassium
Sodium
Lithium
Calcium
Magnesium
Aluminium
Zinc
Iron
Tin
Lead
Copper
Silver
Gold
Platinum
Wiki User
∙ 15y ago
Add your answer:
Earn +20 pts
The blue colour of the solution fades during the electrolysis of copper sulfate. Explain why.?
Why does the colour of copper sulphate solution change when an iron nail is dipped in it? When an iron nail is placed in a copper sulphate solution, iron displaces copper from copper sulphate solution forming iron sulphate, which is green in colour. Therefore, the blue colour of copper sulphate solution fades and green colour appears.
Why does the concentration of tin sulphate solution not change during the electrolysis?
Tin Sulphate stays the same during electrolysis because it is low down in the reactivity series, it can only be extracted by the reduction of carbon, not by electrolysis.
Why does the color of copper sulphate change when an iron nail dipped in it?
When an iron nail is placed in a copper sulphate solution, iron displaces copper from copper sulphate solution forming iron sulphate, which is green in colour.Therefore, the blue colour of copper sulphate solution fades and green colour appears.
Why does the color with sulphate change?
This is because sulphate is a thing that just dissolve in the water and changes the colour.
Is copper sulphate a physical change or chemical?
Copper sulfate is a substance, not a change. It can undergo physical and chemical changes.
An iron nail is placed into some blue copper sulphate solution. A reaction takes place between the iron and the copper sulphate.?
Iron is more reactive than copper in the reactivity series. Hence metallic iron will displace copper cations from the solution. The solution will change colour from blue to brown. Metallic copper may be seen forming/observed on the sides of the reaction vessel/test tude.
What happens when an iron nail is dipped in copper sulphate solution?
A brown layer of copper gets deposited on iron nail. This change is due to a chemical reaction between copper sulphate and iron. Also the colour of the solution changes from blue to green due to the formation of iron sulphate. This reaction can be represented by the following equation: Copper sulphate + Iron = Iron sulphate + Copper solution (CuSO4) + (Fe) = (FeSO) + (Cu)
When zinc rod is dipped in zinc sulphate sol then concentration of solution after time will be?
The concentration of the zinc sulphate solution will not change when a zinc rod is dipped into it. This is because zinc is already present in the solution as zinc ions, so the addition of a zinc rod will not alter the concentration of zinc ions in the solution.
What can be observed about the rate of change of pH of a solution near the end point of titration?
S
What energy change was observed when a seed is added to a supersaturated solution?
Nucleation is an endothermic process.
The blue colour of the solution fades during the electrolysis of copper sulfate. Explain why.?
Why does the colour of copper sulphate solution change when an iron nail is dipped in it? When an iron nail is placed in a copper sulphate solution, iron displaces copper from copper sulphate solution forming iron sulphate, which is green in colour. Therefore, the blue colour of copper sulphate solution fades and green colour appears.
Why does the concentration of tin sulphate solution not change during the electrolysis?
Tin Sulphate stays the same during electrolysis because it is low down in the reactivity series, it can only be extracted by the reduction of carbon, not by electrolysis.
Is copper sulphate dissolves in water a physical or chemical change?
A physical change is different from a chemical change in two ways:1) In a physical change no new substances are made; in a chemical change new substances are made.2) A physical change can be easily reversed; a chemical change cannot be easily reversed.Dissolving copper sulphate in water does not produce a new substance. The copper sulphate solution is a mixture, not a pure substance.Also, by evaporating the water you can easily get the copper sulphate back again.So, dissolving copper sulphate is a physical change.Sometimes, though, when water is added to copper sulphate, it reacts with the water to form copper sulphate pentahydrate, which is a new compound. This would be a chemical change, but actually dissolving it is indeed a physical change only.See these sites for more information:http://www.bbc.co.uk/schools/ks3bitesize/science/chemistry/chem_react_2.shtmlhttp://www.chem4kids.com/files/matter_chemphys.html
Why does the color of copper sulphate change when an iron nail dipped in it?
When an iron nail is placed in a copper sulphate solution, iron displaces copper from copper sulphate solution forming iron sulphate, which is green in colour.Therefore, the blue colour of copper sulphate solution fades and green colour appears.
What would happen if you put iron into a blue copper sulphate solution?
There would be copper deposited in the piece of iron and the solution would show a color change from pale blue to pale green.
Why does the water colour change to blue when copper sulphate was added?
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.
Is this a chemical change or physical change silver nitrate solution is added to another solution producing a white solid?
it is a chemical change
