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chathoayd3
2 năm trước
Nhiệt phân hoàn toàn bng KClO3 để điều chế O2 đủ đốt cháy V lít C4H8.Khí CO2 thoát ra cho qua dd Ca(OH)2 thu 30g kết tủa.Xđ Vl C4H8 đã nung(cảm ơn rất nhiều0
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