Question
What are the equations for these two equations? Not net ionic equations.
a) Nickel (II) chloride and iron
b) Sodium and water
a) Nickel (II) chloride and iron
b) Sodium and water
Answers
Fe(s) + NiCl2(aq) ==> FeCl2(aq) + Ni(s)
2Na(s) + 2H2O(l) ==> 2NaOH(aq) + H2(g)
You need the activity series to do these. Here is a site that I like.
http://www.files.chem.vt.edu/RVGS/ACT/notes/activity_series.html
This site tells you that any metal will displace the ion of a metal BELOW it in the series. Fe is above Ni; therefore, Fe displaces Ni^2+ in NiCl2. Na is above H; therefore, Na displaces H^+ in H2O.
If you had Ni + FeCl2 ==> you would write No reaction BECAUSE Ni is BELOW Fe so Ni will not displace Fe^2+
2Na(s) + 2H2O(l) ==> 2NaOH(aq) + H2(g)
You need the activity series to do these. Here is a site that I like.
http://www.files.chem.vt.edu/RVGS/ACT/notes/activity_series.html
This site tells you that any metal will displace the ion of a metal BELOW it in the series. Fe is above Ni; therefore, Fe displaces Ni^2+ in NiCl2. Na is above H; therefore, Na displaces H^+ in H2O.
If you had Ni + FeCl2 ==> you would write No reaction BECAUSE Ni is BELOW Fe so Ni will not displace Fe^2+
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