Molecular and ionic equations Assignment Example | Topics and Well Written Essays - 250 words

Molecular and ionic equations - Assignment Example Molecular equation Cu(s)+4NHO3 (aq) Cu(NO3)2 (aq)+2NO2 (g)+2H2O (g) Ironic equation Cu(s)+4H+(aq)+4NO3-(aq) Cu2+(aq)+2NO3-(aq)+ 2N3+(aq)+4O2-(aq)+ 2H2O (g) Step 2 Molecular equation Cu(NO3)2 (aq)+2NaOH(aq) Cu(OH)2 (s)+2NaNO3 (aq) Ionic equation Cu2+(aq)+ 2NO3-(aq)+2Na+(aq)+2OH-(aq) Cu2+(aq)+ 2OH-(aq)+2 Na+(aq)+ 2NO3-(aq) Step 3 Molecular equation Cu(OH)2 (s) CuO(s) +H2O(g) Ionic equation Cu2+(aq)+ 2OH-(aq) Cu2+(aq)+O2-+ H2O(g) Step 4 Molecular equation CuO(s)+H2SO4 (aq) CuSO4(aq)+ H2O(l) Ionic equation Cu2+(aq)+O2-(aq)+2H+(aq)+SO42-(aq) Cu2+(aq)+ SO42-(aq)+ H2O(l) Step 5 Molecular equation CuSO4(aq)+Zn(s) Cu(s)+ZnSO4(aq) Ionic equation Cu2+(aq)+ )+ SO42-(aq)+Zn(s) Cu(s)+Zn2+(aq)+ SO42-(aq) Side reactions a) Molecular equation Zn(s)+HCl(aq) ZnCl2 (aq)+H2 (g) Ionic equation Zn(s)+H+(aq)+Cl-(aq) Zn2+(aq)+Cl-(aq)+H2 (g) b) Molecular equation HCl(aq)+NH3 (aq) NH4Cl (aq) Ionic equation H+(aq)+Cl-(aq) NH4+(aq) 2. The mas of copper could be in excess as it may have oxidized to form copper (II) Oxide and also due to the side reactions that takes place.