飛行里程

標題:

chemical equations

發問:

• 為什麼我壓條JJ時,有些特別的感覺-@1@
• 資生堂化妝品一問!~_0
• Maths-解析幾何_4

 

此文章來自奇摩知識+如有不便請留言告知

求chemical equations:1) concentrated sulphuric acid dehydrates cane sugar to give black spongy carbon2) warm a mixture of concentrated sulphuric acid, sodium chloride and manganese(IV)oxide3) reaction between ammonia and dilute sulphuric acid4) reaction between ammonia and dilute nitric acid5)... 顯示更多 求chemical equations: 1) concentrated sulphuric acid dehydrates cane sugar to give black spongy carbon 2) warm a mixture of concentrated sulphuric acid, sodium chloride and manganese(IV)oxide 3) reaction between ammonia and dilute sulphuric acid 4) reaction between ammonia and dilute nitric acid 5) reaction between ammonia and dilute hydrochloric acid 求ionic equations: 1) reaction between ammonia and dilute sulphuric acid 2) reaction between ammonia and dilute hydrochloric acid 3) reaction betwwen iron(III)oxide and dilute sulphuric acid 急急急急急急急 thank you!

最佳解答:

1) concentrated sulphuric acid dehydrates cane sugar to give black spongy carbon cane sugar = surcose = C12H22O11 C12H22O11(s) → 12 C(s) + 11 H2O(l) 2) warm a mixture of concentrated sulphuric acid, sodium chloride and manganese(IV)oxide H2SO4(l) + NaCl(aq) → NaHSO4(aq) + HCl(g) 2 H2SO4(l) + MnO2(s) → Mn(SO4)2(aq) + 2 H2O(l) 3) reaction between ammonia and dilute sulphuric acid 2 NH4OH(aq) + H2SO4(aq) → (NH4)2SO4(aq) + 2 H2O(l) 4) reaction between ammonia and dilute nitric acid NH4OH(aq) + HNO3(aq) → H2O(l) + NH4NO3(aq) 5) reaction between ammonia and dilute hydrochloric acid NH4OH(aq) + HCl(aq) → NH4Cl(aq) + H2O(l) 求ionic equations: 1) reaction between ammonia and dilute sulphuric acid OH-(aq) + H+(aq) → H2O(l) 2) reaction between ammonia and dilute hydrochloric acid OH-(aq) + H+(aq) → H2O(l) 3) reaction betwwen iron(III)oxide and dilute sulphuric acid 2 Fe2O3 (s) + 3 H2SO4(aq) → 6 Fe2(SO4)3 (aq) + 3H2O(l) 2012-01-20 23:45:14 補充： 3) reaction betwwen iron(III)oxide and dilute sulphuric acid 做錯了，正解如下: 2 Fe2O3 (s) + 6H+(aq) → 4Fe3+ (aq) + 3H2O(l) 2012-01-20 23:46:47 補充： 還是改漏了 Fe2O3 (s) + 6H+(aq) → 2 Fe3+ (aq) + 3H2O(l)

其他解答:

睇下幫5幫到手la!! http://forum.mochagame.hk/?fromuid=40379