Some iron(III) chloride (FeCl3\text{FeCl}_3FeCl3) is dissolved in water to make a solution.
A reaction takes place when sodium hydroxide solution is added to a solution of iron(III) chloride.
Complete the word equation to show this reaction:
sodium hydroxide+iron(III) chloride⟶‾+‾ \text{sodium hydroxide} + \text{iron(III) chloride} \longrightarrow \underline{\qquad\qquad\qquad\qquad} + \underline{\qquad\qquad\qquad\qquad} sodium hydroxide+iron(III) chloride⟶+State what you would observe in this reaction.
Silver nitrate is used to test for halide ions.
Silver nitrate solution is added to another solution of iron(III) chloride. A white precipitate forms. Identify the white precipitate.
In this test, another substance should be added to react with any carbonate ions that might be present. Identify this other substance and state one observation that would be made if carbonate ions were present.
A compound with the formula NH4FeCl4\text{NH}_4\text{FeCl}_4NH4FeCl4 gives the same results in the tests in parts (a) and (b) as iron(III) chloride (FeCl3\text{FeCl}_3FeCl3).
Describe how you could show that a solution of NH4FeCl4\text{NH}_4\text{FeCl}_4NH4FeCl4 contains ammonium ions.
35 exam-style questions on Edexcel IGCSE Chemistry Chemical tests. Each one has a worked solution and a mark scheme showing where the marks go.