最佳答案:CO2+Na2O=>O2+Na2CO3自己配平一下就ok我真服了你了,有化学方程式还不会说文字表达式!过氧化钠+二氧化碳-》碳酸钠+氧气
最佳答案:With global environment deterioration more people choose Guo "low carbon life" t
最佳答案:As all known .more and more help healthy lives.Presently, a new lifestyle called