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Luungocthang
2 năm trước
Khi đốt dây sắt, sắt phản ứng cháy với oxi theo phương trình: 3Fe + 2O2 --> Fe3O4 Tính thể tích khí O2 (đktc) cần dùng để phản ứng hoàn toàn với 16,8 gam Fe. (Cho: Fe = 56; Cu = 64; P = 31; O = 16; N = 14; O = 16)
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