写出下列化学符号中数字2的含义： 2N_1H2_22CO_3Cu2+_4_刷题宝

题干

写出下列化学符号中数字2的含义：

2N____

H₂____

2CO____

Cu²⁺____

上一题下一题 0.0难度选择题更新时间:2019-10-28 10:02:02

答案(点此获取答案解析）

\u6c2e\u539f\u5b50\u7684\u4e2a\u6570\u4e3a2\u4e2a,\u4e00\u4e2a\u6c22\u5206\u5b50\u4e2d\u542b\u67092\u4e2a\u6c22\u539f\u5b50,\u4e00\u6c27\u5316\u78b3\u5206\u5b50\u7684\u4e2a\u6570\u4e3a2\u4e2a,\u6bcf\u4e2a\u94dc\u79bb\u5b50\u5e262\u4e2a\u5355\u4f4d

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