!Прошу!!Помогите решить задачи с помощью хим.уравнения:
1)Дано:V(H2)=5,6 л m(O2)-? Хим.уравн. Н2+О2=Н2О
2)Дано:m(Al)=8,1г. V(O2)-? Хим.уравн.Аl+О2=Al2O3
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