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2 KOH + H2CO3 = 2 H2O + K2CO3
FeS2 + HNO3 = Fe(NO3)3 + H2O + S + NO2 =>
FeS2 + 6 HNO3 = Fe(NO3)3 + 3 H2O + 2 S + 3 NO2
Na2SiO3 + HCl = H2O + NaCl + SiO2 =>
Na2SiO3 + 2 HCl = H2O + 2 NaCl + SiO2
MgOH2 + NO3 = Mg(NO3)2 + H2O =>
MgOH2 + 2 NO3 = Mg(NO3)2 + H2O
C89H6 + O2 = CO2 + H2O =>
2 C89H6 + 181 O2 = 178 CO2 + 6 H2O
NaNO2 + NaOH + Be + H2O = NaBeO2 + NH3 =>
NaNO2 + NaOH + 2 Be + H2O = 2 NaBeO2 + NH3
NH3OHCl + H3TiCl6 = H2TiCl6 + NH4Cl + H2O =>
NH3OHCl + 2 H3TiCl6 = 2 H2TiCl6 + NH4Cl + H2O
H2O + K2Cr2O7 = KOH + H2Cr2O7 =>
2 H2O + K2Cr2O7 = 2 KOH + H2Cr2O7
Na2CrO4 + NaBr + H2O = NaCrO2 + Br2 + NaOH =>
2 Na2CrO4 + 6 NaBr + 4 H2O = 2 NaCrO2 + 3 Br2 + 8 NaOH
Fe2 + H2O = Fe5O4 + H2 =>
5 Fe2 + 8 H2O = 2 Fe5O4 + 8 H2
NH4HCO3 + KOH = K2CO3 + (NH4)2CO3 + H2O =>
2 NH4HCO3 + 2 KOH = K2CO3 + (NH4)2CO3 + 2 H2O
CrO2 + Na2O2 + H2O = CrO4 + NaOH =>
CrO2 + 2 Na2O2 + 2 H2O = CrO4 + 4 NaOH
Ag + BrO3 = Br2 + Ag2O =>
12 Ag + 2 BrO3 = Br2 + 6 Ag2O
Sr + HgS = SrS + SrHg =>
2 Sr + HgS = SrS + SrHg
NH3(s) + Cl2(g) = N2H4(l) + NH4Cl(s) =>
4 NH3(s) + Cl2(g) = N2H4(l) + 2 NH4Cl(s)
KF + NaOH = KOH + NaF =>
KF + NaOH = KOH + NaF
C6H6O + HBr = C6H3Br3O + H =>
C6H6O + 3 HBr = C6H3Br3O + 6 H
Zn + Au(SO4)3 = Zn(SO4)2 + Au =>
3 Zn + 2 Au(SO4)3 = 3 Zn(SO4)2 + 2 Au
COS2 + O2 = COSO4 + SO2 =>
COS2 + 3 O2 = COSO4 + SO2
(a)NaOH(s) + CO2(g) = Na2CO3(s) + H2O(l) =>
2(a)NaOH(s) + CO2(g) = Na2CO3(s) + H2O(l)
CH3CH2OH + KMnO4 + H2SO4 = C6H4COOH + MnSO4 + K2SO4 + H2O =>
35 CH3CH2OH + 26 KMnO4 + 39 H2SO4 = 10 C6H4COOH + 26 MnSO4 + 13 K2SO4 + 119 H2O
Co + Fe{3+} = Co{2+} + Fe{2+} =>
Co + 2 Fe{3+} = Co{2+} + 2 Fe{2+}
Cu(Cl)2(aq) + Al(s) = Al(Cl)3(aq) + Cu(s) =>
3 Cu(Cl)2(aq) + 2 Al(s) = 2 Al(Cl)3(aq) + 3 Cu(s)
K2SO4 + Cu2O = Cu2SO4 + K2O =>
K2SO4 + Cu2O = Cu2SO4 + K2O
HCl + CaH2 = CaCl2 + H2 =>
2 HCl + CaH2 = CaCl2 + 2 H2
(C2H3O2)3PO4 + LiOH = C2H3O2OH + (Li)3PO4 =>
(C2H3O2)3PO4 + 3 LiOH = 3 C2H3O2OH + (Li)3PO4
Li2O(aq) + Co2(SO4)3(aq) = Co2O3(s) + Li2SO4(aq) =>
3 Li2O(aq) + Co2(SO4)3(aq) = Co2O3(s) + 3 Li2SO4(aq)
AgClO4 + Na2CO3 = Ag2CO3 + NaClO4 =>
2 AgClO4 + Na2CO3 = Ag2CO3 + 2 NaClO4
KJ + H2SO4 + KMnO4 = J2 + MnSO4 + K2SO4 + H2O =>
10 KJ + 8 H2SO4 + 2 KMnO4 = 5 J2 + 2 MnSO4 + 6 K2SO4 + 8 H2O
Ni(CH3COO)2 + HI = NiI2 + HCH3COO =>
Ni(CH3COO)2 + 2 HI = NiI2 + 2 HCH3COO
[Ni(NH3)4]SO4 + NaOH = Na2(SO4) + Ni(OH)2 + NH3 =>
[Ni(NH3)4]SO4 + 2 NaOH = Na2(SO4) + Ni(OH)2 + 4 NH3
MgSO3 + H2I = MgI + H2SO3 =>
MgSO3 + H2I = MgI + H2SO3
Br2 + Na2S2O3 + H2O = Na2SO4 + HBr + S =>
Br2 + Na2S2O3 + H2O = Na2SO4 + 2 HBr + S
(Mg(NO3)2) + (Na2SO4) = MgSO4 + NaNO3 =>
(Mg(NO3)2) + (Na2SO4) = MgSO4 + 2 NaNO3
Zn{2+} + H{+} = Zn + H{2+} =>
Zn{2+} + 2 H{+} = Zn + 2 H{2+}
ClBr + NaK = ClK + NaBr =>
ClBr + NaK = ClK + NaBr
lead(ii)carbonate = lead(ii)oxide + carbondioxide =>
PbCO3 = PbO + CO2
Fl2 + NaCl = FlCl + Na =>
Fl2 + 2 NaCl = 2 FlCl + 2 Na
Na2N = Na + N2 =>
2 Na2N = 4 Na + N2
H3PO4 + Mg(OH)2 = H2O + Mg3(PO4)2 =>
2 H3PO4 + 3 Mg(OH)2 = 6 H2O + Mg3(PO4)2
F + HCl = HF + FCl2 =>
3 F + 2 HCl = 2 HF + FCl2
Au + HNO3 = Au(NO3) + NO2 + H2O =>
Au + 2 HNO3 = Au(NO3) + NO2 + H2O
CH3COOH + NaCO3 = CH3COONa + H2O + CO2 =>
9 CH3COOH + 8 NaCO3 = 8 CH3COONa + 6 H2O + 10 CO2
CrCl3 + H2O = Cr2O3 + HCl =>
2 CrCl3 + 3 H2O = Cr2O3 + 6 HCl
H4N2O3 + Ba(OH)2 = Ba(NO3)2 + H2O + NH3 =>
2 H4N2O3 + Ba(OH)2 = Ba(NO3)2 + 2 H2O + 2 NH3
MnCO3 + O2 + K2CO3 = K3MnO4 + CO2 =>
4 MnCO3 + 3 O2 + 6 K2CO3 = 4 K3MnO4 + 10 CO2
MgSO4(aq) + BaCl2(aq) = MgCl2(aq) + BaSO4(aq) =>
MgSO4(aq) + BaCl2(aq) = MgCl2(aq) + BaSO4(aq)
CaFe(CO3)2 = CaO + FeO + CO2 =>
CaFe(CO3)2 = CaO + FeO + 2 CO2
Ni((NO3)2)(H2O)6 + Fe(NO3)3(H2O)9 + Zn(NO3)2(H2O)6 + Cu(NO3)2(H2O)25 = Ni5Cu1Zn4Fe2O4 + H2O + N2 + O2 =>
5 Ni((NO3)2)(H2O)6 + 2 Fe(NO3)3(H2O)9 + 4 Zn(NO3)2(H2O)6 + Cu(NO3)2(H2O)25 = Ni5Cu1Zn4Fe2O4 + 97 H2O + 13 N2 + 37 O2
H2CO3 + CH3COONa = NaHCO3 + CH3COOH =>
H2CO3 + CH3COONa = NaHCO3 + CH3COOH
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