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mingyxinhdep
2 năm trước
dẫn 11.2g khí co tác dụng với sắt từ oxit Fe3o4 thu được 18,6 gam sắt và 17,6 khí cacbonic a.Viết phương trình hóa học trên b.tính khối lượng sắt từ oxi đã tham gia phản ứng c,cho 17,6 gam cacbonic trên tác dụng với 19,6 gam sắt canxi hidroxit thu được canxi cacbonat CaCO3 và 7,2 gam nước . Biết rằng phản ứng xảy ra theo phương trình phản ứng sau Ca(OH)2 +CO2 ->CACO3 +H20 TÍNH KHỐI LƯỢNG CANXI CACBONAT TẠO THÀNH SAU PHẢN ỨNG
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