Final answer:
The ionic compound Sr(MnO4)2 is named strontium permanganate. It consists of strontium ions and permanganate ions. Other permanganate compounds include potassium permanganate (KMnO4), calcium permanganate (CaMn2O8), and iron(III) permanganate (Fe(MnO4)3).
Step-by-step explanation:
The ionic compound Sr(MnO4)2 consists of strontium ions (Sr2+) and permanganate ions (MnO4−). The permanganate ion has manganese in a +7 oxidation state. The strontium ion carries a charge of +2, which balances out the -1 charge of each permanganate ion.
Following the basic rules for naming ionic compounds, where the cation (positive ion) is named first followed by the anion (negative ion), the name for Sr(MnO4)2 is strontium permanganate.
As for the other compounds formed with permanganate:
- Potassium permanganate: K+ paired with MnO4− results in the formula K(MnO4) or KMnO4.
- Calcium permanganate: Ca2+ paired with MnO4− leads to the formula Ca(MnO4)2 or CaMn2O8, but is commonly referred to as just Ca(MnO4)2.
- Iron(III) permanganate: Fe3+ paired with MnO4− generates the formula Fe(MnO4)3.