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30 Ιουν 2023 · The reaction between persulfate ions (peroxodisulfate ions), S 2 O 8 2-, and iodide ions in solution can be catalyzed using either iron(II) or iron(III) ions. The overall equation for the reaction is: \[ S_2O_8^{2-} + 2I^- \rightarrow 2SO_4^{2-}+ I_2 \label{2} \] For the sake of argument, we'll take the catalyst to be iron(II) ions.
The formula of an ionic compound can be determined by directly comparing the charges of the ions: For example, iron (II) sulfate. The iron (II) ion is Fe 2+, which means that it has a 2+ or +2 charge. The sulfate ion is SO 42–, which means that it has a 2– or –2 charge. The charges cancel each other out.
15 Αυγ 2024 · Neither charge is an exact multiple of the other, so we have to go to the least common multiple of 6. To get 6+, we need three iron(II) ions, and to get 6−, we need two phosphate ions. The proper formula is Fe 3 (PO 4) 2, and the compound's name is iron(II) phosphate.
The iron is the reducing agent and is oxidised to Fe 2+ (aq) and the reaction mixture must be acidified, to excess acid is added to the iron (II) ions before the reaction begins. The choice of acid is important, as it must not react with the manganate (VII) ions, so the acid normally used is dilute sulfuric acid.
2 Ιαν 2021 · By. Anne Marie Helmenstine, Ph.D. Updated on January 02, 2021. Ionic compounds form when positive and negative ions share electrons and form an ionic bond. The strong attraction between positive and negative ions often produce crystalline solids that have high melting points.
18 Ιουν 2020 · Write ionic equations for chemical reactions between ionic compounds. Write net ionic equations for chemical reactions between ionic compounds. For single-replacement and double-replacement reactions, many of the reactions included ionic compounds—compounds between metals and nonmetals, or compounds that contained recognizable polyatomic ions.
For Iron (II) ion use the hints and resources below to help write the formula. Hint for Writing the Formula for Iron (II) ion When we have a transition metal the Roman Numeral in parentheses shows the charge.
