What is the formula for iron (III) oxide?

2 Answers
May 16, 2018

Answer:

Is it not #Fe_2O_3#, i.e. #"ferric oxide....."#

Explanation:

The #+III# oxidation states denotes the #"ferric ion..."# Rust is thus formally #2xxFe^(3+)+3xxO^(2-)#, the which formulation gives a NEUTRAL salt. Rust prevention is a HUGE industrial and commercial concern....

May 16, 2018

Answer:

#Fe_2O_3#

Explanation:

To name a compound in which the first element is a transition metal and there are roman numerals, find out the charge of the non-transition metal. In this case, if oxygen were to get 8 valence electrons, from its typical 6, it would gain 2. Electrons have a negative charge so its charge would be -2. There are 3 oxygen, as stated by the roman numerals. The resulting answer would be #Fe_2O_3#. If you find that confusing here's a diagram on naming compounds like this and others. http://flowchart.bro-h.com