Chemistry, 21.07.2021 20:30 harris435942
Cho khí co đi qua m gam hỗn hợp X gồm fe3o4 và cuo nung nóng. sau 1 thời gian thu được 31,2 gam chất rắn Z và 11,2 lít hỗn hợp Y (đktc).biết y có tỉ khối với h2 là 18.Tìm m a, cho toàn bộ lượng Z ở trên bào dung dịch h2so4 đặc nóng dư, sau khi kết thúc các phản ứng thu được 6,72 lít khí so2.Tinh thành phần trăm khối lượng mỗi chất trong X
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Cho khí co đi qua m gam hỗn hợp X gồm fe3o4 và cuo nung nóng. sau 1 thời gian thu được 31,2 gam chất...
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