(1) 5KI+KIO 3+6HCl = 3I 2+6KCl+3H 2O
(2) 2KI+H 2O 2+2HCl = I 2+2KCl+2H 2O
(3)取2 mL溶液盛于试管中,向试管中滴加1滴淀粉溶液,观察现象。若溶液显蓝色,则溶液中还有碘单质。反之,溶液中不含有碘单质
(1) 5KI+KIO 3+6HCl = 3I 2+6KCl+3H 2O
(2) 2KI+H 2O 2+2HCl = I 2+2KCl+2H 2O
(3)取2 mL溶液盛于试管中,向试管中滴加1滴淀粉溶液,观察现象。若溶液显蓝色,则溶液中还有碘单质。反之,溶液中不含有碘单质