Net Ionic Equations?
a) K2CrO4(aq) with AgNO3(aq)
b) K2CrO4(aq) with Pb(NO3)2(aq)
c) K2CrO4(aq) with Hg2(NO3)2(aq)
d) AgNO3(aq) with HCl(aq)
e) Pb(NO3)2(aq) with HCl(aq)
f) Hg2(NO3)2(aq) with HCl(aq)
g) AgCl(s) with NH3(aq)
回答 (2)
I'll show you the steps and hopefully you learn from it!
1) First we do double displacement reaction
K2CrO4 + AgNO3 ---> KNO3 + Ag2CrO4
Then we look for compound that remains a solid. Theres usually a chart for this, Ag2CrO4 is insoluable so it doesnt dissociates
Now we split every single compound to its basic components except for Ag2CrO4
2K + CrO4^-2 + Ag + NO3 ---> K + NO3 + Ag2CrO4
Now we match and cancel
CrO4^-2 + Ag ----> Ag2CrO4
I hope you understand :)
a)
CrO4{2-} + Ag{+} → Ag2CrO4
b)
CrO4{2-} + Pb{2+} → PbCrO4
c)
CrO4{2-} + Hg(2+} → HgCrO4
d)
Ag(+) + Cl{-} → AgCl
e)
Pb{2+} + Cl{-} → PbCl2
f)
Hg(+) + Cl{-} → HgCl
g)
Ag{+} + 2 NH3 → [Ag(NH3)2]{+}
收錄日期: 2021-04-21 00:08:48
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20140616141303AAUmyzY
檢視 Wayback Machine 備份