I selected letter B. Am I right?
A) Ca
B) Fe
C) F
D) O
E) K
2007-03-04 05:46:19 · 3 answers · asked by shortydidi03 2 in Science & Mathematics ➔ Chemistry
Yes - Fe2+ and Fe3+.
2007-03-04 05:51:51 · answer #1 · answered by Gervald F 7 · 0⤊ 0⤋
Roman numerals. E.g. Copper (II) Sulfate vs. Copper (I) Sulfate. in the former, copper has a cost of two+, in the latter it has a cost of a million+. regarding the remark directed at my answer, the question gave the impression to be coming from a severe college student basically commencing chemistry. Their instructor would simplify issues via speaking as though it replaced into already an ion, so I did a similar.
2016-12-14 10:31:02 · answer #2 · answered by ? 4 · 0⤊ 0⤋
Yes, because Fe is a transition metal and has multiple valence possibilities. The other elements are in groups that have only one valence possibility
2007-03-04 06:00:37 · answer #3 · answered by reb1240 7 · 0⤊ 0⤋