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haphamtaythuyanh
2 năm trước
Khối lượng KClO3 cần thiết để điều chế được 3,36 lít O2 (đktc) là: * 13,45 gam 12,25 gam 14,48 gam 15 gam Cách đọc tên nào sau đây sai? * CuO đồng (II) oxit CaO Canxi oxit CO2 Cacbon (II) oxit FeO sắt (II) oxit Các oxit bazo là? * SO3, SO2, CO2 MgO, CaO, CO2 CaO, MgO, Na2O MgO, SO3, SO2 Hợp chất nào sau đây không phải là oxit? * MgO CO2 CuSO4 K2O
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