用化学符号或符号表示的意义填空：①2个磷原子_1；②Al3+_2；③三个硫酸根离子_3④5个水分子_4；⑤NO2中N元素显+4价_5．⑥氯化亚铁_6．

题干

用化学符号或符号表示的意义填空：

①2个磷原子____；

②Al³⁺____；

③三个硫酸根离子____

④5个水分子____；

⑤NO₂中N元素显+4价____．

⑥氯化亚铁____．

上一题下一题 0.0难度选择题更新时间:2014-08-14 02:09:45

2P,\u94dd\u79bb\u5b50,3SO₄²^\ufe63,5H₂O,

\overset{+ 4}{N}

O₂

根据表格内容，选择正确答案。

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