COMPLETE AND BALANCE THE FOLLOWING EQUATIONS(reaction given) in net ionic form.

Question

COMPLETE AND BALANCE THE FOLLOWING EQUATIONS(reaction given) in net ionic form. be sure to indicate the phase

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COMPLETE AND BALANCE THE FOLLOWING EQUATIONS (reaction given) in net ionic form. be sure to indicate the phase Cr(OH)^-_4 _(aq) + H_2 O_2 _(aq) + OH^- _(aq) rightarrow CrO_4^2- _(aq) + Pb^2+ _(aq) rightarrow Zn^2+ _(aq) + NH_3 _(aq) + H_2 O_(l) (until basic) rightarrow Zn(OH)_2 (s) + NH_3 _(aq) (excess) rightarrow Zn^2+ _(aq) + NH_3 _(aq) (excess) rightarrow Zn^2+ _(aq) + OH^- _(aq) (until basic) rightarrow Zn(OH)_2(s) + OH^- _(aq) (excess) rightarrow Zn^2+ _(aq) + OH^- _(aq) (excess) rightarrow Zn(OH)_2 (s) + H^+ _(aq) rightarrow Zn^2+ _(aq) + K^+ _(aq) + Fe(CN)_6^4- _(aq) rightarrow Ni^2+ _(aq) + NH_3 (aq) + H_2 O _(l) (until basic) rightarrow Ni(OH)_2 (s) + NH_3 _(aq) (excess) rightarrow Ni^2+ _(aq) + NH_3 (excess) rightarrow Ni^2+ _(aq) + OH^- _(aq) rightarrow Ni(OH)_2 (s) + H^+ _(aq) rightarrow Ba^2+ _(aq) + SO_4^2- _(aq) rightarrow

Explanation / Answer

15) Cr(OH)4 ^ - + H2O2 + OH ^ - ------> Cr2O7 ^ -2 + e^- + H2O

16) CrO4 ^ 2- + Pb +2 -----------------> PbCrO4

17) Zn ^+2 + NH3 + H2O -------> [Zn(NH3)4 ] 2+ + 4H2O

18) Zn(OH)2 + NH3 ----> Zn(NH3)4 + OH

19) Zn 2+ + NH3 -----> [Zn(NH3)4] ^ 2+

20)Zn 2+ + 2 OH -   -------> Zn(OH) 2

21) Zn(OH)2 + OH - -------> ZnO2 +   + 2H2O

22) Zn 2+ + OH - (excess) -------> Zn(OH4)2 -

23) Zn(OH)2 + H + ---------> ZnO + H2O

24) Zn 2+ + K + + Fe(CN)6 4- ------> K2 Zn3[Fe(CN)6]2

25)Ni +2 + NH3 + H2O ----> Ni(OH)2 + NH4 +

26) Ni(OH)2 +6 NH3 ---------> [Ni(NH3)6 ]2 +   + 2 OH -

27) Ni 2+ +12 NH3 -------> 2Ni(NH3)6

28) Ni +2 + OH -   ---------> Ni(OH)2

29) Ni(OH)2 + H + ----------> Ni +2 + H2O

30) Ba 2+ + SO4 2-   -------> BaSO4

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