Show work Write balanced net ionic equations for the following reactions. Note:

Question

Show work Write balanced net ionic equations for the following reactions. Note: Complex ions are formed in all of the following 0.1 M Co (NO_3)_3 and 6 M NH_3 0.1 M Cd (NO_3)_2 and 6 M HBr 0.1 M Fe(NO_3)_3 and 3 KSCN 0.05 M AgNO_3 and 6 M NaCN A soln cont. Hg^2+ and excess 6 M S^2- A soln cont. Bi^3+ and excess 6 M I^- Write balanced net ionic equations for the following reactions. Note: Complex ions may be formed, but you may want check the solubility rules and an acid-base table as well. 0.1 M CuSO_4 and 0.1 M NH_3 0.1 M CuSO_4 6 and 6 M NH_3 0.1 M Pb(NO_3)_2 and 1 M NaOH Addition of 6 M NaOH to the precipitate in 6.c. Solid and Cr_2 O_3 and 6 M HCl 6 M NaCN is added to a solution containing [HgI_4]^2-. Note: You may want to check a table of K_f constants.

Explanation / Answer

1. Balanced net ionic equations,

a. Co3+ + 6NH3 --> [Co(NH3)6]3+

b. Cd2+ + 4Br- --> [CdBr4]2-

c. Fe3+ + SCN- ---> [FeSCN]2+

2. Net ionic equation,

a. Cu2+ + NH3 --> Cu(NH3)2+

b. Cu2+ + 4NH3 ---> [Cu(NH3)4]2+

c. Pb2+ + 4OH- ---> Pb(OH)2

d. more NaOH would give [Pb(OH)4]2-

e. Cr2O3 + 6HCl ---> 2CrCl3 + 3H2O

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