Вопрос школьника по предмету Химия
Определить молекулярную массу следующих веществ: MgCl2, KBr, CH4, K2MnO4
Ответ учителя по предмету Химия
Ответ:
Mr(MgCl2)=24+2*35=94
Mr(KBr)=39+80=119
Mr(CH4)=12+1*4=16
Mr(K2MnO4)=39*2+55+16*4=197
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Объяснение:
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