Learn the names associated with the negative radical (carbonate, oxide and chromate) and (in the case of iron) the oxidation state of the positive ion. Fe is Fe+3 (ferric) in this case.
The compounds names are potassium carbonate, iron (ferric) carbonate and lead chromate.
How do I give a name for the following?
K2CO3
Fe2O3
PbCrO4
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