The solution of CuSO4 is blue.
The solution of FeSO4 is green.
In aqueous solution, calcium ions (Ca²⁺) are typically colorless. This is because they do not have unpaired electrons to absorb visible light, which is necessary for color. Therefore, when dissolved in water, the solution remains clear and devoid of any color.
In an aqueous solution the solvent is water.
Sounds like copper (II) sulfate (ie cupric sulfate or CuSO4)
When sodium chloride (NaCl) is mixed with copper(II) sulfate (CuSO4) in solution, there is generally no significant color change because both compounds are colorless in their solid state and when dissolved in water. However, if the reaction involves heating or specific conditions, the presence of copper ions can impart a blue color to the solution due to CuSO4. Overall, the primary observation is the lack of a distinct color reaction between these two salts in typical conditions.
red or green if it's not completely finished
The aqueous solution of ferrous sulphate is typically pale green in color.
A ferrous sulfate solution typically appears colorless or pale green. When heated, the color may change due to oxidation reactions, resulting in a yellowish color or possibly forming a brown precipitate.
In aqueous solution, calcium ions (Ca²⁺) are typically colorless. This is because they do not have unpaired electrons to absorb visible light, which is necessary for color. Therefore, when dissolved in water, the solution remains clear and devoid of any color.
In an aqueous solution the solvent is water.
Sounds like copper (II) sulfate (ie cupric sulfate or CuSO4)
An aqueous solution of silver ions (Ag+) typically appears colorless. However, if there are silver nanoparticles present in the solution, it may show a yellow hue.
The sodium ion, Na+, has no color. You can observe this easily by dissolving table salt (NaCl) in water. The water does not change color.
The aqueous color disolved to .001 M of iron nitrate is purple or violet. (Not brownish orange). The individual crystals in a dry state are also a pale violet color.
The blue color of the copper sulfate solution turns green when an iron nail is added because a chemical reaction occurs where iron displaces copper in the solution, forming iron sulfate and copper metal. The green color is due to the presence of copper metal particles in the solution.
When sodium chloride (NaCl) is mixed with copper(II) sulfate (CuSO4) in solution, there is generally no significant color change because both compounds are colorless in their solid state and when dissolved in water. However, if the reaction involves heating or specific conditions, the presence of copper ions can impart a blue color to the solution due to CuSO4. Overall, the primary observation is the lack of a distinct color reaction between these two salts in typical conditions.
It creates a clear aqueous solution with a blue tint.
Usually chromium with an oxidation state of +6 MnO4- will also impart a purple color in a solution