Answer:
The substance likely to form an insoluble precipitate is [tex]Fe^{2+}[/tex]
Explanation:
The test for cation [tex]Fe^{2+}[/tex] when [tex]Fe^{2+}[/tex] is mixed in aqueous solution such as NaOH (sodium hydroxide) produces an insoluble precipitate
A mixture of Fe^2+ and CO3^2- in aqueous solution, what substance is likely to form an insoluble precipitate.
A compound is insoluble if it does not dissolve in water. We know the substances that can dissolve in water by referring to the solubility rules.
From the solubility rules, we know that a mixture of Fe^2+ and CO3^2- yields FeCO3 which is insoluble in water. Hence, a mixture of Fe^2+ and CO3^2- in aqueous solution, what substance is likely to form an insoluble precipitate.
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