This depends on the compound.
Subscript (:This is a subscript: (Na2) the "2" is the Subscript.
This compound is the chromium phosphate.
No, iron is an element. Chrmium is also an element, so there are no other substances, compounds or otherwise, that are found in it. However, there are alloys that contain both iron and chromium along with other metals.
d
In a binary compound, the subscript for a compound's formula would tell us how much of a certain atom there is.
Subscript (:This is a subscript: (Na2) the "2" is the Subscript.
The 3 is the coefficient because it is the big number before the compound whereas the subscript is the small number after the compound.
The subscript 4 indicates the number of that type of atoms in the compound. In this case, there are four Fluorine atoms in this molecular compound.
This compound is the chromium phosphate.
The subscript to the left of the element symbol (unless it doesn't have a subscript; then the number of of atoms in the element is 1)
No, iron is an element. Chrmium is also an element, so there are no other substances, compounds or otherwise, that are found in it. However, there are alloys that contain both iron and chromium along with other metals.
HClO4 (the four is a subscript)
d
Chromium (III) chloride
In CrBr (chromium monobromide) Cr would have an oxidation number of +1. This compound is not known perhaps you meant CrBr3, where chromium has an oxidation number of +3
This compound is chromium hydroxide.
Chromium is an element.