Scelta multipla
Deodorants contain a compound called aluminum hydroxide. What is its chemical formula?
124
views
3. Chemical Reactions
Naming Ionic Compounds
Scelta multipla
Which of the following is the correct chemical formula for the iron(II) ion?
A
Fe^{3+}
B
Fe^{+}
C
Fe_2^{+}
D
Fe^{2+}
Guida verificata passo dopo passo1
Understand that the Roman numeral in parentheses indicates the oxidation state (charge) of the ion. Here, iron(II) means iron has a +2 charge.
Recall that the chemical symbol for iron is Fe.
Combine the symbol Fe with the charge indicated by the Roman numeral II, which corresponds to a 2+ charge.
Write the ion with the charge as a superscript: \(Fe^{2+}\).
Verify that the charge matches the oxidation state given (II means +2), confirming that \(Fe^{2+}\) is the correct formula for the iron(II) ion.
Video correlati
Pratica correlata
