August 2022 1 2 Report
Помогите с задачами по химии, пожалуйста!
9 класс.
Задача 1.
Какой объем воздуха необходим для горения 480 г магния ?
Задача 2.
Какая масса осадка образуется при реакции нитрата серебра с 980 50% раствора фосфорной кислоты?
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