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Which redox reaction would most likely occur if silver and copper metal were added to a solution that contained silver and copper ions?
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What will the result of ethanol plus iodine be?
Diatomic Iodine is non-polar, so the reaction will likely be a solution
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
What evidence is there that a chemical reaction occurred on the surface of the statue of liberty?
When a chemical reaction occurs, elements and compounds combine in different ways to make new materials. The elements copper and oxygen have reacted to form a new compound, copper oxide.
A solution has a pH of 8.5 is acidic or basic which substance is more likely to cause this pH in water HCI or NaOH why?
A solution with a substance of 8.5 would be basic not acidic. NaOH would most likely cause this pH as it is a base whereas the reaction between HCl and water would cause a very stong acid.
What substances would most likely be malleable?
copper
What will the result of ethanol plus iodine be?
Diatomic Iodine is non-polar, so the reaction will likely be a solution
Solution contains metallic ion blue in colour flame test produce blue green colour The solution forms a precipitate when sodium hydroxide is added to the solution What is the ion in the solution?
Most likely copper.
An insoluble substance produced by a reaction in aqueous solution is called an aqueous solid?
It is more likely to be called a precipitate.
What is causing the copper in your attic to turn green?
If your attic doesn't have any leaks, then the patina (green color) is most likely formed by the reaction between the copper and carbon dioxide in the air, forming copper carbonate. This patina, called verdigris, protects the copper underneath from corrosion.
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
What evidence is there that a chemical reaction occurred on the surface of the statue of liberty?
When a chemical reaction occurs, elements and compounds combine in different ways to make new materials. The elements copper and oxygen have reacted to form a new compound, copper oxide.
Is it true that a low concentration of a chemical slows reaction rate?
I would point your studies towards collision theory. It's not that a low concentration necessarily slows down a reaction, but that a low concentration will have a slower reaction rate than a higher concentration of reactants. A lower concentration means a lower number of reactants in solution, meaning it is less likely for the reactants to collide and create products. With a lot of reactants, it is much more likely for collisions to occur.
Why would your skin color change to green?
Copper has a reaction with skin that may turn it green or black. So if you have gold or silver jewelery since copper is one of the metals in these 2 to keep prices down this may be the most likely cause.
What would happen if you mix a strong base and a weak acid?
Neutralization is more likely to be H+ from acid reaction with OH- of alkali.
Where did the substance that appeared at the bottom of the evaporating dish after it was heated come from?
It is likely the substance was a salt such as sodium chloride or copper sulphate that was in solution. When the water evaporated it left the solid salts behind.
A solution has a pH of 8.5 is acidic or basic which substance is more likely to cause this pH in water HCI or NaOH why?
A solution with a substance of 8.5 would be basic not acidic. NaOH would most likely cause this pH as it is a base whereas the reaction between HCl and water would cause a very stong acid.
How can you see copper sulphate dissolve in water?
Take some copper sulfate solid and add it to a beaker of water. Stir and you will see that the solid slowly disappears to form a blue solution. Copper sulfate has dissolved and is therefore soluble in water. Anhydrous copper sulfate is a white solid while hydrated copper sultate (CuSO4.5H2O) is blue.
