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Chemistry, 22.07.2021 16:30 j015

Cho 70,5gam hỗn hợp CuO và Na2O tác dụng vừa đủ với 13,5g nước. a) TÍnh phần trăm khối lượng mỗi oxit trong hỗn hợp
b)Tính m dung dịch H2SO4 19,6% hoà tam hết oxit ban đầu

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Cho 70,5gam hỗn hợp CuO và Na2O tác dụng vừa đủ với 13,5g nước. a) TÍnh phần trăm khối lượng mỗi ox...

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