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hoanguyenthi11998
2 năm trước
Hoà tan hết 6,4g oxit M2Ox bằng lượng vừa đủ dung dịch H2SO4 10% thu được dung dịch muối có nồng độ 12,9%. a) Tìm CT oxit và và viết tên gọi của oxit đó b) Tính khối lượng dd axit sunfuric 10% đã dùng
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