chromate: CrO42-; dichromate: Cr2O72-
The names of most polyatomic ions end in -ite or -ate.
The disadvantage of common names is that they do not tell you the chemical formula. Common names advantages are that non chemists can identify them/
You use the criss cross method to swith the charge of the element with the charge of the whole ion If the charge of the element is more than one then put the ion in parenthesis and then put the charge outside
You answer
Use the rules for writing the names of acids in reverse to write the foemulas for acids.
There are many e.e. NH4+ NO3- ClO4- SO42- CO32- ETC
The names of most polyatomic ions end in -ite or -ate.
ite or ate
The disadvantage of common names is that they do not tell you the chemical formula. Common names advantages are that non chemists can identify them/
You use the criss cross method to swith the charge of the element with the charge of the whole ion If the charge of the element is more than one then put the ion in parenthesis and then put the charge outside
Hydroxide ion
names and formulae how are they reconised
You answer
MnO4- : Manganate O2- : Oxide CrO4 2- : Chromate Cr2O7 2- : Dichromate
The formulas tab brings together many of the common things used in working with formulas, like functions, names and auditing formulas.
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