三招破解元素化学教学难题
王湘利, 邓远富
Three Ways to Solve the Teaching Problems of Chemistry of the Elements
Xiangli Wang, Yuanfu Deng
图3
沉淀反应2AgNO
3
+ K
2
CrO
4
→ Ag
2
CrO
4
+ 2KNO
3