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123th456
2 năm trước
Nhiệt phân hoàn toàn 43,85g hỗn hợp gồm KMnO4, KClO3, thu đc khí X và m gam hh chất rắn Y gồm K2MnO4, KCl, MnO2. Toàn bộ lượng khí X tacs dụng hết với cacbon nóng đỏ thu đc 8,96 lít hỗn hợp khí Z ơn đktc gồm CO, CO2 có tỷ khối so với H2 là 16. Tính khối lượng và phần trăm klg các chất có trong 43,85g hỗn hợp ban đầu?
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