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Copper is added to a solution of nitric acid The solution becomes hot and changes from colorless to dark blue What is the best explanation for the change in temperature?
The change in temperature is likely due to an exothermic reaction between copper and nitric acid, resulting in the release of heat. The change in color to dark blue may be due to the formation of copper nitrate in the solution.
What is the balanced equation for the reaction of phosphorus with concentrated nitric acid?
Pieces of copper are added to hot concentrated solutions of hydrochloric, phosphoric, sulfuric and nitric acids. A reaction clearly takes place between copper and nitric acid. The presence of copper ions can be observed by adding each solution to a dilute solution of ammonia. If copper ions were present, we would see the blue color of the copper-ammonia complex. Sulfuric acid has oxidized the copper metal, as indicated by the blue color. Nitric acid is a stronger oxidizing agent (and produces a higher concentration of copper(II) ions), as indicated by the darker blue color.
What happens when copper sulfate was added to water?
When copper sulfate is added to water, it dissociates into copper ions and sulfate ions. The copper ions give the solution a blue color, while the sulfate ions do not impact the color. The solution becomes a blue color due to the presence of copper ions.
What is the colour of the copper sulfate solution when zinc granules are added to it?
The color of the copper sulfate solution changes from blue to colorless when zinc granules are added to it. This is because zinc displaces copper in the solution through a chemical reaction, forming zinc sulfate and leaving the solution without copper ions responsible for its blue color.
Will the color change if copper metal is added to silver nitrate solution change?
Yes, a color change will occur. When copper metal is added to silver nitrate solution, a displacement reaction takes place where copper replaces silver in the solution. This leads to the formation of copper nitrate and silver metal, resulting in a change in color from clear to blue as silver particles are formed.
Copper is added to a solution of nitric acid The solution becomes hot and changes from colorless to dark blue What is the best explanation for the change in temperature?
The change in temperature is likely due to an exothermic reaction between copper and nitric acid, resulting in the release of heat. The change in color to dark blue may be due to the formation of copper nitrate in the solution.
What is the balanced equation for the reaction of phosphorus with concentrated nitric acid?
Pieces of copper are added to hot concentrated solutions of hydrochloric, phosphoric, sulfuric and nitric acids. A reaction clearly takes place between copper and nitric acid. The presence of copper ions can be observed by adding each solution to a dilute solution of ammonia. If copper ions were present, we would see the blue color of the copper-ammonia complex. Sulfuric acid has oxidized the copper metal, as indicated by the blue color. Nitric acid is a stronger oxidizing agent (and produces a higher concentration of copper(II) ions), as indicated by the darker blue color.
How you test a metal is copper?
Dissolve a small sample in nitric acid; the color of the solution become blue.
What happens when copper sulfate was added to water?
When copper sulfate is added to water, it dissociates into copper ions and sulfate ions. The copper ions give the solution a blue color, while the sulfate ions do not impact the color. The solution becomes a blue color due to the presence of copper ions.
What is the colour of the copper sulfate solution when zinc granules are added to it?
The color of the copper sulfate solution changes from blue to colorless when zinc granules are added to it. This is because zinc displaces copper in the solution through a chemical reaction, forming zinc sulfate and leaving the solution without copper ions responsible for its blue color.
Will the color change if copper metal is added to silver nitrate solution change?
Yes, a color change will occur. When copper metal is added to silver nitrate solution, a displacement reaction takes place where copper replaces silver in the solution. This leads to the formation of copper nitrate and silver metal, resulting in a change in color from clear to blue as silver particles are formed.
What will you see if magnesium ribbon is added to a copper solution?
The ribbon starts to break up at the surface, a brown solid forms(copper metal), and the solution eventually becomes colourless (from losing copper ions)
What happens when sodium hydroxide is added to copper oxide the colour of precipitate?
When sodium hydroxide is added to copper oxide, a blue precipitate of copper hydroxide is formed. The color of the precipitate is due to the formation of copper ions in solution.
What indicate an equilibrium shift once ammonium was added to copper solution?
The addition of ammonium to a copper solution can shift the equilibrium towards formation of a copper-ammonia complex, resulting in a decrease in free copper ions in solution. This shift can be indicated by changes in color, pH, or concentration of reactants or products in the solution.
When copper turnings are added to silver nitrate solution why does the solution becomes blue in colour?
The blue color in the solution is due to the formation of copper(II) nitrate, as the copper turnings react with the silver nitrate solution. This reaction forms copper(II) ions which give the solution a blue color, indicating the presence of these ions in the solution.
What is would you expect to see when zinc is added to Copper Sulphate?
there would be a single replacement reaction where the copper forms on the top of the zinc and the blue color of the copper sulfate would get lighter and eventually you would end up with zinc sulfate and copper
What happens when excess hydroxide solution is added to copper II sulphate solution?
When excess hydroxide solution is added to copper II sulphate solution, a precipitate of copper II hydroxide forms. The balanced chemical equation for this reaction is CuSO4 + 2NaOH -> Cu(OH)2 + Na2SO4. In this reaction, the blue color of the copper II sulfate solution turns into a light blue precipitate of copper II hydroxide.
