Iron (III) iodide
Na3PO4
Potassium chromate
Co(MnO4)3
I need help please.
2006-11-01 13:44:11 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
Fe3+, I-
Na+,PO43-
K+,CrO42-
Co3+, MnO4-
2006-11-01 13:46:20 · answer #1 · answered by Greg G 5 · 0⤊ 0⤋
i don't want to give out the answers (and they were already given to you) but here are some helpful tips for future problems.
You have to separate the name/formulas into the cation and the anion.
When the name is given, the cation name comes first, then the anion.
example: potassium chromate --> Potassium cation and chromate anion.
when the formula is given, most cations are just single elements (except ammonium ion) but the anions can be polyatomic (like MnO4). With practice, you will be able to recognize polyatomic ions.
hope that helps.
2006-11-01 13:54:37 · answer #2 · answered by Xenon 3 · 0⤊ 0⤋
Fe3+, I-
Na+, (PO4)3-
K+,(Cr2O7)2-
Co3+, (MnO)4-
And remember there's also H+ and OH-
2006-11-01 14:02:35 · answer #3 · answered by ispakles 3 · 0⤊ 0⤋
i hav no idea
2006-11-01 13:46:44 · answer #4 · answered by Stephy12006 2 · 0⤊ 0⤋