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kimoanhnie
2 năm trước
cân bằng phương trình sau: 1. Fe(NO$_{3}$)$_{3}$ + NAOH -----> Fe(OH)$_{3}$ +NANO($_{3}$) 2. FE($OH_{3}$ ) + HN$_{3}$ ----> Fe($NO_{3}$ )$_{3}$ + 3(H$_{2}$)O
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