[化學] 兩個小問題

看板TransBioChem作者BIEGABOY (BIEGABOY)時間15年前 (2010/07/06 17:51)推噓3(3推 0噓 1→)

留言4則, 2人參與討論串1/1

1. For this balanced equation, [Cu(NH3)4]2+ + [S2O4]2- +2H20 ---> Cu +2[SO3]2- +4[NH4]+ determine the number of electrons gained and lost, per atom， by the oxidizing and reducing elements，respectively? a.1，1 b.2，2 c.2，1 d.2，4 我是選c，因為題目有per atom?? 2. The compond Mn02 is dound to be stable in the presence of HN03. Mn02 readily dissolves in HCl. Which statement best explains this behavior? a.the nitrate ion cannot oxidize Mn02 b.Mn02 cannot oxidize the nitrate c.the Cl- reduces Mn from 4+ to 2+ d.basic Mn02 is neutralized by HCl a，b不知道選何者比較好??覺得是a...硝酸跟離子無法氧化Mn4+吧!!! -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 58.114.85.80

推

lancerfin

07/06 21:11, , 1^F

07/06 21:11, 1^F

※ 編輯: BIEGABOY 來自: 118.171.45.157 (07/06 21:14)

推

lancerfin

07/06 21:16, , 2^F

07/06 21:16, 2^F

推

lancerfin

07/06 21:22, , 3^F