I don't know what the "2" is, but NH4+ is the formula for the ammonium ion. It has a charge of 1+.
Ammonium Iodide
Ammonium Iodide
The chemical formula (NH4)2Cr2O7 is for ammonium dichromate.
NH4 is the chemical formula of the cation ammonium - (NH4)+.
The chemical formula is NH4+If you mean the chemical name of NH4+ than it it is an ammonium ion.
(NH4)2Cr2O7 is the chemical formula of ammonium dichromate.
The chemical formula of Mohr's salt is(NH4)2SO4 . FeSO4 . 6H2OFormula: (NH4)2Fe(SO4)2.6H2O
The chemical formula (NH4)2Cr2O7 is for ammonium dichromate.
NH4 is the chemical formula of the cation ammonium - (NH4)+.
NH4+ is the chemical formula for an ammonium ion.
The chemical formula of ammonium sulphite is (NH4)2SO3.
The chemical formula is NH4+If you mean the chemical name of NH4+ than it it is an ammonium ion.
The name is ammonium sulfide.
Ammonium phosphide is a chemical name; the chemical formula is (NH4)3P.
(NH4)2Cr2O7 is the chemical formula of ammonium dichromate.
(NH4)2CO3
This formula is for ammonium oxide.
The chemical formula of Mohr's salt is(NH4)2SO4 . FeSO4 . 6H2OFormula: (NH4)2Fe(SO4)2.6H2O
To notify how much of a group of atoms there are example: Mg + NH4 = Mg(NH4)2 signifying that there are 2 ammonium molecules in the chemical formula