来自孟纯煜的问题
初中化学解释下列符号中2的含义①O2___________②2O___________③2H2O____________________________________④2H______________H2__________________2CO____________⑤2H2O___________,_______________⑥CuO(+2)上面_______________
初中化学
解释下列符号中2的含义
①O2___________
②2O___________
③2H2O____________________________________
④2H______________H2__________________2CO____________
⑤2H2O___________,_______________
⑥CuO(+2)上面_______________
1回答
2020-10-30 03:19