Ions Fe2 AP- Nat Ca2+ NH4+ Fe Ni2+ Hg22- Hg2+ CO32- FeCO3 Al2(CO3)3 Na2CO3 CaCO3

Question

Ions Fe2 AP- Nat Ca2+ NH4+ Fe Ni2+ Hg22- Hg2+ CO32- FeCO3 Al2(CO3)3 Na2CO3 CaCO3 (NH4)2CO3 Fe2(CO3)3 NICO; Hg2CO3 HgCO3 BrO3- Fe(BrO3)2 A1(BrO3)3 NaBrO; Ca (BrO3)2 NH4BrO; Fe(BrO3)3 Ni(BrO3)2 Hg.(BrO3)2 Hg(BrO3)2 C2H302 Fe(C2H302)2 A1(C2H302); NaCH302 Ca(CH302) 2NH4C2H302 Fe(C2H302);Ni(C2H302)2 Hg2(C2H302)2 Hg(CH302)2 - Fe(OH)2 Al(OH)3 NaOH Ca(OH)2 NH4OH Fe(OH)3 Ni(OH)2 Hg(OH)2 Hg(OH)2 HCO3- Fe(HCO3)2 A1(HCO3)3 NaHCO3 Ca(HCO3)2 (NH4)HCO, Fe(HCO3)3 Ni(HCO3)2 | Hg(HCO3)2 Hg(HCO3)2 PO43- Fe3(PO4)2 AlPO4 Na3PO4 Ca 3(PO4)2 (NH4)3PO4 FePO4 Ni3(PO4)2 (Hg2)3(PO4)2 Hg3(PO4)2 SO32- FeSO3 Al2(SO3)3 Na2SO3 CaSO3 (NH4)2SO3 Fe2(SO3)3 NiSO3 Hg2SO3 HgSO3 C104 Fe(C104)2 A1(C104)3 NaC104 Ca(C104)2 NH4C104 Fe(C104)3 Ni(C104)2 Hg: (C104)2 Hg(CIO4)2 SO42- FeSO4 Al2(SO4)3 Na2SO4 CaSO4 (NH4)2SO4 Fe2(SO4)3 NiSO4 Hg2SO4 HgSO4 02- Fe0 Al2O3 Na20 Ca0 (NH4)20 Fe203 Ni0 Hg30 Hgo Cl- FeCl2 AlCl3 Naci NaCl CaCl2 CaCl2 NH-CI NH4Cl FeCl3 FeCl3 NICI NiC12 Hg3Cl2 HgCl2 HgCl2 HgCl2

Explanation / Answer

In the formula (NH4)HCO3 , the bracket is not needed, as the radical NH4+ comes only once. Other than that all the formulae are correct.

Correct formula is NH4HCO3

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