What is the chemical formula for sodium hydroxide?
NaOH
Sodium hydroxide is commonly used in various chemical reactions and processes.
What is the precipitate color when testing for Fe²⁺?
light blue
The light blue precipitate indicates the presence of iron(II) ions.
What happens to the precipitate when Fe²⁺ is treated with excess reagent?
insoluble in excess
The precipitate remains insoluble when excess reagent is added.
What color indicates the presence of Fe³⁺ ions?
reddish brown
The reddish brown precipitate is characteristic of iron(III) ions.
What is the color of the precipitate formed with Cr³⁺?
green
The green precipitate indicates the presence of chromium ions.
What happens to the Cr³⁺ precipitate in excess reagent?
soluble in excess
The green precipitate forms a green solution when excess reagent is added.
What is the color of the precipitate when testing for Zn²⁺?
white
The white precipitate indicates the presence of zinc ions.
What happens to the Zn²⁺ precipitate in excess reagent?
soluble in excess
The white precipitate dissolves to form a dark blue solution in excess.
What is the color of the precipitate when testing for Ca²⁺?
white
The white precipitate indicates the presence of calcium ions.
True or false: The precipitate formed by Fe²⁺ is soluble in excess.
FALSE
The precipitate remains insoluble in excess reagent.
What is the chemical formula for sodium hydroxide?
NaOH
Sodium hydroxide is commonly used in various chemical reactions and processes.
What is the precipitate color when testing for Fe²⁺?
light blue
The light blue precipitate indicates the presence of iron(II) ions.
What happens to the precipitate when Fe²⁺ is treated with excess reagent?
insoluble in excess
The precipitate remains insoluble when excess reagent is added.
What color indicates the presence of Fe³⁺ ions?
reddish brown
The reddish brown precipitate is characteristic of iron(III) ions.
What is the color of the precipitate formed with Cr³⁺?
green
The green precipitate indicates the presence of chromium ions.
What happens to the Cr³⁺ precipitate in excess reagent?
soluble in excess
The green precipitate forms a green solution when excess reagent is added.
What is the color of the precipitate when testing for Zn²⁺?
white
The white precipitate indicates the presence of zinc ions.
What happens to the Zn²⁺ precipitate in excess reagent?
soluble in excess
The white precipitate dissolves to form a dark blue solution in excess.
What is the color of the precipitate when testing for Ca²⁺?
white
The white precipitate indicates the presence of calcium ions.
True or false: The precipitate formed by Fe²⁺ is soluble in excess.
FALSE
The precipitate remains insoluble in excess reagent.
