What colour and formula are the iron 2+ & iron 3+ chloride complexes?
http://en.wikipedia.org/wiki/Iron(III)_chloride
To find the color and formula of the iron 2+ and iron 3+ chloride complexes, you can refer to reliable sources such as chemical databases, textbooks, or scientific articles. In this case, you have provided a link to Wikipedia, which can be a good starting point.
To find the information on the Wikipedia page you have shared, follow these steps:
1. Open the provided link: http://en.wikipedia.org/wiki/Iron(III)_chloride
2. Scroll down the page to the section titled "Complexes."
3. Look for the subsections related to the iron 2+ and iron 3+ chloride complexes. In this case, look for "Iron(II) chloride complexes" and "Iron(III) chloride complexes."
4. Under each subsection, you will find information about the complexes, including their formulas and colors.
Please note that the exact color and formula of iron 2+ and iron 3+ chloride complexes may vary depending on the specific ligands present in the complex. The information provided in the reliable sources will help you obtain the most common or representative color and formula for these complexes.