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Kie m tra ba i cu .

Xa?y ra s?? a?n mo?n ho?a ho?c. Bo?t kh? H2 thoa?t ra lu?c ?a?u nhie?u sau ?o? ?t da?n do ca?c bo?t kh? na?y bo?c k?n la? sa?t, ca?n tr?? s?? tie?p ca?n cu?a ion H v??i ca?c nguye?n t?? sa?t. Sa?t b? a?n mo?n cha?m.. Fe 2 HCl = FeCl2 H2. 2) Trong th? nghie?m tre?n ne?u nho? the?m va?i gi

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Kie m tra ba i cu .

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