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kaydrama2003
22.10.2020 •
Chemistry
Which phase change represents sublimation
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Ответ:
Ответ:
So without confusion, the naming of the metal part is simply the metal name, such as calcium oxide.
The Stock system (which indicates the oxidation state) is required only when the metal exhibits multiple oxidation states, such as iron (II) oxide or iron (III) oxide.
Then again, older nomenclature applies the ending -ous to the lower oxidation state, and -ic to the higher. Using the Latin name ferrum for iron, the previous compounds were named ferrous oxide and ferric oxide respectively.