0,896 lít khí clo (?ktc) ph?n ?ng v?a ?? v?i a gam h?n h?p y g?m zn và fe. n?u cho a gam y vào dung d?ch ??ng ii nitrat d? khi k?t thúc ph?n ?ng th?y xu?t hi?n 1,92 gam k?t t?a . tính thành ph?n ph?n tr?m kh?i l??ng m?i ch?t trong y
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Category: ecology |
Author: Ehud Raghnall
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