miron66 miron66

29-05-2024
Chemistry

Answered

Почему в химических соединениях по типу ZnSO4 и CuSO4 не нужно ставить индекс два перед сульфитом, а например в Na2SO4 нужно и как понять в каких веществах нужно или не нужно ставить индекс перед SO4

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