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Co2 + 2 CO3 = 2 CoCO3
Fe5O4 + Al = Al2O3 + Fe =>
3 Fe5O4 + 8 Al = 4 Al2O3 + 15 Fe
PH3 + Na2CrO4 + H2O = Cr(OH)3 + P4 + NaOH =>
4 PH3 + 4 Na2CrO4 + 4 H2O = 4 Cr(OH)3 + P4 + 8 NaOH
H3PO4 + (NH4)2MoO4 = (NH4)3PO4 + MoO3 + H2O =>
2 H3PO4 + 3(NH4)2MoO4 = 2(NH4)3PO4 + 3 MoO3 + 3 H2O
K2[HgJ4] + KCN = K2[Hg(CN)4] + KJ =>
K2[HgJ4] + 4 KCN = K2[Hg(CN)4] + 4 KJ
Cr2O7 + H2O = CrO7 + H3O =>
Cr2O7 + 21 H2O = 2 CrO7 + 14 H3O
Zn + Cu(SO4) = Zn(SO4) + Cu =>
Zn + Cu(SO4) = Zn(SO4) + Cu
K2[HgJ4] + KCN = K2[Hg(CN)4] + KJ =>
K2[HgJ4] + 4 KCN = K2[Hg(CN)4] + 4 KJ
Co(NH3)6(OH)2 + O2 + H2O = Co(OH)3 + NH3 =>
4 Co(NH3)6(OH)2 + O2 + 2 H2O = 4 Co(OH)3 + 24 NH3
NaCl + N2 = NCl + Na =>
2 NaCl + N2 = 2 NCl + 2 Na
NaClO2(aq) + H2O(l) = HClO2(aq) + NaOH(aq) =>
NaClO2(aq) + H2O(l) = HClO2(aq) + NaOH(aq)
Br2 + S2O3{2-} + H2O = Br{-} + SO4{2-} + H{+} =>
4 Br2 + S2O3{2-} + 5 H2O = 8 Br{-} + 2 SO4{2-} + 10 H{+}
CaCO3 = CaO + CO2 =>
CaCO3 = CaO + CO2
Cu + NaNO3 = Cu2NO3 + Na =>
2 Cu + NaNO3 = Cu2NO3 + Na
Al2(SO4)3 + (NH3H2O) = Al(OH)3 + (NH4)2SO4 =>
Al2(SO4)3 + 6(NH3H2O) = 2 Al(OH)3 + 3(NH4)2SO4
Pb(s) + Cu(aq) = PbCu =>
Pb(s) + Cu(aq) = PbCu
AlCINa(OH) = Al(OH)CINa =>
AlCINa(OH) = Al(OH)CINa
Na2SO3 + HCl = NaCl + SO2 + H2O =>
Na2SO3 + 2 HCl = 2 NaCl + SO2 + H2O
LiBr(aq) + Cu(s) = CuBr(s) + Li(aq) =>
LiBr(aq) + Cu(s) = CuBr(s) + Li(aq)
PbZnSO4 = PbSO4Zn =>
PbZnSO4 = PbSO4Zn
Pb(NO3)2(aq) + CaCl2(aq) = PbCl2 + Ca(NO3)2 =>
Pb(NO3)2(aq) + CaCl2(aq) = PbCl2 + Ca(NO3)2
Na2SO4 + HNO3 = NaH + SO4(NO3)2 =>
Na2SO4 + 2 HNO3 = 2 NaH + SO4(NO3)2
NO2 + N2H4 = NO + H2O =>
4 NO2 + N2H4 = 6 NO + 2 H2O
CI + NaOH = NaCI + NaCIO3 + H2O =>
6 CI + 6 NaOH = 5 NaCI + NaCIO3 + 3 H2O
W + KOH + KNO3 = K2WO4 + KNO2 + H2O =>
W + 2 KOH + 3 KNO3 = K2WO4 + 3 KNO2 + H2O
NaOH + Hg2Cl2 = NaCl + Hg2(OH)2 =>
2 NaOH + Hg2Cl2 = 2 NaCl + Hg2(OH)2
LiF + BI3 = LiI + BF3 =>
3 LiF + BI3 = 3 LiI + BF3
CuCO3 + Ca = CaCO3 + Cu =>
CuCO3 + Ca = CaCO3 + Cu
LiFNaOH = NaFLiOH =>
LiFNaOH = NaFLiOH
KMnO4 + FeSO4 + H2SO4 = Fe2(SO4)3 + H2O + K2SO4 + MnSO4 =>
2 KMnO4 + 10 FeSO4 + 8 H2SO4 = 5 Fe2(SO4)3 + 8 H2O + K2SO4 + 2 MnSO4
As2S + HClO3 + H2O = H3AsO4 + S + HCl =>
3 As2S + 5 HClO3 + 9 H2O = 6 H3AsO4 + 3 S + 5 HCl
S + ClO2 + NaOH = Na2SO4 + NaClO2 + H2O =>
S + 6 ClO2 + 8 NaOH = Na2SO4 + 6 NaClO2 + 4 H2O
CH3COCH3 + H2 = CH3CHOHCH3 =>
CH3COCH3 + H2 = CH3CHOHCH3
Al4C3 + H2O = Al2O3 + CO + H2 =>
Al4C3 + 9 H2O = 2 Al2O3 + 3 CO + 9 H2
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
CuCl2 + Na3PO4 = Cu3(PO4)2 + Na + Cl =>
3 CuCl2 + 2 Na3PO4 = Cu3(PO4)2 + 6 Na + 6 Cl
S + KOH = KS + K2SO3 + H2O =>
5 S + 6 KOH = 4 KS + K2SO3 + 3 H2O
KINaOH = KOHNaI(aq) =>
KINaOH = KOHNaI(aq)
Sr(IO3)2 = Sr + IO3 =>
Sr(IO3)2 = Sr + 2 IO3
NH4 = NH3 + H =>
NH4 = NH3 + H
NH3 + C = CH4 + N2 =>
4 NH3 + 3 C = 3 CH4 + 2 N2
Al + HNO3 = Al(NO3)3 + H2 =>
2 Al + 6 HNO3 = 2 Al(NO3)3 + 3 H2
CuOH + H2S = Cu2S + H2O =>
2 CuOH + H2S = Cu2S + 2 H2O
Me + O2 = MeO =>
2 Me + O2 = 2 MeO
CaO + NO3 = CaO(NO3) =>
CaO + NO3 = CaO(NO3)
C2H6Br = C2H5HBr =>
C2H6Br = C2H5HBr
HClO4 + CsOH = CsCl + H2O + O2 =>
HClO4 + CsOH = CsCl + H2O + 2 O2
H2S + Cd(NO3) = HNO3 + Cd2S =>
H2S + 2 Cd(NO3) = 2 HNO3 + Cd2S
CCl2F2 + HCl = CCl4 + HF =>
CCl2F2 + 2 HCl = CCl4 + 2 HF
SiO2Na2SO3 = Na2SiO3SO2 =>
SiO2Na2SO3 = Na2SiO3SO2
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