What reacts with sodium hydroxide to form a green precipitate?

The addition of sodium hydroxide solution or ammonia solution to a solution containing [Fe(H2O)6]2+ ions produces a green precipitate. The green precipitate is iron(ii) hydroxide.

What is the pale green solution?

Another substance that can form a green gel precipitate that makes a solution appear pale green is the chromium 3+ ion. It makes a green gel like precipitate. Also if ammonia is added, then you can get it to dissolve possibly.

What solution reacts with sodium hydroxide?

NaOH reacts with acid to produce a water and an ionic compound. For example, when sodium hydroxide reacts with hydrochloric acid (HCl), the hydroxide ion from NaOH reacts with the hydrogen ion in HCl to form water (H2O). In a similar way, sulphuric acid (H2SO4) is neutralised by sodium hydroxide.

What produces a green precipitate?

A green precipitate forms when dilute sodium hydroxide solution is added to a sample in solution.

Which ion forms a GREY green precipitate with aqueous ammonia?

Explanation: Test for Cr3+ is treating it with NaOH. It gives a grey-green precipitate which is soluble in excess NaOH to give a dark green solution. Or you can treat it with aqueous NH3 where it forms a grey-green precipitate and insoluble in excess ammonia.

What forms pale green solution with h2so4?

With dilute sulphuric acid iron gives a pale green solution of iron(II) sulphate B, and hydrogen, C:

• A à B + C: Fe + H2SO4 à FeSO4 + H2
• B à H + I + J: 2FeSO4 à Fe2O3 + SO2 + SO3.
• J à K: SO3 + H2O à 2H+ + SO42- (but see my article on the pH of sulphuric acid); followed by Ba2+ + SO42- à BaSO4.

What reacts with HCL to form a green solution?

The reversible copper sulfate reaction When concentrated hydrochloric acid is added to a very dilute solution of copper sulfate, the pale blue solution slowly turns yellow-green on the formation of a copper chloride complex.

What type of a reaction occurs when a sodium hydroxide solution is mixed with an acetic acid?

neutralization reaction
This reaction is considered a neutralization reaction. The base (NaOH) and weak acid (CH3COOH) react to produce a salt (NaNO3 and water (H2O).

What type of reaction is vinegar and sodium hydroxide?

Acetic acid, CH3COOH, will react with sodium hydroxide, NaOH, to produce sodium acetate, CH3COONa, and water. The unbalanced chemical equation that describes this neutralization reaction.