Aqueous Ions

Question 1

Iron(II) with sodium carbonate

Answer 1

[Fe(H2O)6]2+ +CO3 2- ——> FeCO3 +6H2O

Question 2

Iron(II) with NaOH

Answer 2

[Fe(H2O)6]2+ +2OH- ——-> [Fe(H2O)4(OH)2] +2H2O

Question 3

Iron(II) with NH3

Answer 3

[Fe(H2O)6]2+ +2NH3 ———> [Fe(H2O)4(OH)2] + 2NH4+

Question 4

Copper with sodium carbonate

Answer 4

[Cu(H2O)6]2+ +CO3 2- ———> CuCO3 +6H2O

Question 5

Copper with NaOH

Answer 5

[Cu(H2O)6]2+ +2OH- ——-> [Cu(H2O)4(OH)2]+2H2O

Question 6

Copper with NH3

Answer 6

[Cu(H2O)6]2+ +2NH3 ——-> [Cu(H2O)4(OH)2] +2NH4+

Question 7

Copper with excess NH3

Answer 7

[Cu(H2O)4(OH)2] + 4NH3 ———> [Cu(H2O)2(NH3)4]2+ + 2H2O + 2OH-

Question 8

Copper with excess NH3

Answer 8

[Cu(H2O)6]2+ + 4NH3 ——-> [Cu(H2O)2(NH3)4]2+ +4H2O

Question 9

Copper with chlorine

Answer 9

[Cu(H2O)6]2+ + 4Cl- ——-> [CuCl4]2- +6H2O

Question 10

Iron(iii) with sodium carbonate

Answer 10

2[Fe(H2O)6]3+ 3CO3 2- ——-> 2[Fe(H2O)3(OH)3] +3CO2 + 3H2O

Question 11

Iron(iii) with NaOH

Answer 11

[Fe(H2O)6]3+ +3OH- ——> [Fe(H2O)3(OH)3] +3H2O

Question 12

Iron(iii) with NH3

Answer 12

[Fe(H2O)6]3+ +3NH3 ——-> [Fe(H2O)3(OH)3] +3NH4+

Question 13

Aluminium with sodium carbonate

Answer 13

2[Al(H2O)6]3+ +3CO3 2- ——> 2[Al(H2O)3(OH)3] +3CO2 + 3H2O

Question 14

Aluminium with NaOH

Answer 14

[Al(H2O)6]3+ +3OH- ——> [Al(H2O)3(OH)3] + 3H2O

Question 15

Aluminium with excess NaOH

Answer 15

[Al(H2O)3(OH)3] +OH- ——-> [Al(H2O)2(OH)4]- +H2O

Question 16

Aluminium with NH3

Answer 16

[Al(H2O)6]3+ +3NH3 ——-> [Al(H2O)3(OH)3] +3NH4+