Предмет: Химия, автор: Oksana7b

обчисліть масову частку оксигену в речовині,формула якої Zn(NO3)2

Ответы

Автор ответа: nikolaygr

83

M(Zn(NO3)2)=65+28+96=189

w(O)=96*100/189=50,79%

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