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Complete and balance the following equations in net ionic form and indicate the phase.

17 Zn2 NHH,O (until basic) 19. Zn2+4w NH3(aq)(excess)→ 20 Zn2OH (until basic)-> 21. Zn(OH).(s) + OH-cao(excess) → 22. Zn2+ (m) + OH-(aq,(excess)→ (ag) (aq) Zn2+ (aq) + N产(au) + Ni(OH)2(s) + Ni2+ (aq) + 24. K+ (aq, + Fe(CN)-(ao → 25. NH, (aq, + H,00, (until basic)-→ 28, NH3(aq(excess)→ 27, NH, (excess) 28. Ni2+ (aq) + OH-(s) → Ba2+ (aq) + SO42-(aq) → 30.
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PborOn es (a4) 인 n(or)2) 2t 502 Baso, (s) >

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