Question

what reaction cycles are included to the formation of iron?

Answer 1

Answer:

The cycling of iron between its +2 and +3 oxidation states is referred to as the iron cycle. This process can be entirely abiotic or facilitated by microorganisms, especially iron-oxidizing bacteria.

Answer 2

The cycling of iron between its +2 and +3 oxidation states is referred to as the iron cycle.

Explanation:

• This process can be entirely abiotic or facilitated by microorganisms, especially iron-oxidizing bacteria.
• The abiotic processes include the rusting of iron-bearing metals, where Fe2+ is abiotically oxidized to Fe3+ in the presence of oxygen, and the reduction of Fe3+ to Fe2+ by iron-sulfide minerals.
• The biological cycling of Fe2+ is done by iron oxidizing and reducing microbes.
• Iron is an essential micronutrient for almost every life form.
• It is a key component of hemoglobin, important to nitrogen fixation as part of the Nitrogenase enzyme family, and as part of the iron-sulfur core of ferredoxin.