1. Английский язык
  2. Вычислите абсолютную массу атома

Вычислите абсолютную массу атома магния(Mg) ,натрия (Na) , железа (Fe) ( пример расчета смотри как у хлора) m(Mg)=

m (Na)=

m(Fe)=​

candles candles    2   23.02.2021 10:22    0

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