[國中理化]請問以下化學式的分子量各為多少呢?? 20點喔!!1- Mg+2HCl→MgCl2+H22- 2H2+O2→2H2O3- CH4+2O2→CO2+2H2O4- N2+2O2→2NO25- CaCO3+2HCl→CaCl2+CO2+H2O6- 2NaOH+H2SO4→Na2SO4+H2O
2006-02-19 05:18:37 · 2 個解答 · 發問者 Po556In40 6 in 科學 ➔ 化學
Mg+2HCl→MgCl2+H224 36.5 95 22H2+O2→2H2O2 32 18CH4+2O2→CO2+2H2O16 32 44 18N2+2O2→2NO228 32 46CaCO3+2HCl→CaCl2+CO2+H2O 100 36.5 111 44 182NaOH+H2SO4→Na2SO4+H2O 40 98 142 18
2006-02-19 10:33:07 補充:
第六個化學反應式有誤-未平衡,水少了一個”2”。修正後如下: 2NaOH+H2SO4→Na2SO4+"2"H2O
2006-02-18 13:29:08 · answer #1 · answered by Frank 7 · 0⤊ 0⤋
1→97.216
2→34.016
3→78.026
4→60.02
5→171.998
6→160.066
通常是不會去算小數點啦...你如果不要小數點在叫我po吧!
2006-02-18 13:29:17 · answer #2 · answered by xoxo 2 · 0⤊ 0⤋