问题:
写出下列化合物中划横线元素的化合价。
(1)K MnO 4____________
(2)K 2 MnO 4__________________
(3)Fe( NO 3) 2_________________
(4)Na 2 FeO 4__________________
(5) NH 4NO 3___________________
(6)Ca( ClO) 2_______________
(7)H ClO 4 __________________
写出下列化合物中划横线元素的化合价。
(1)K MnO 4____________
(2)K 2 MnO 4__________________
(3)Fe( NO 3) 2_________________
(4)Na 2 FeO 4__________________
(5) NH 4NO 3___________________
(6)Ca( ClO) 2_______________
(7)H ClO 4 __________________
(1)K MnO 4____________
(2)K 2 MnO 4__________________
(3)Fe( NO 3) 2_________________
(4)Na 2 FeO 4__________________
(5) NH 4NO 3___________________
(6)Ca( ClO) 2_______________
(7)H ClO 4 __________________
参考答案: