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2 ZnS + 3 O2 = 2 ZnO + 2 SO2
P4 + F2 = PF3 =>
P4 + 6 F2 = 4 PF3
KOH + NaHCO3 = KHCO3 + NaOH =>
KOH + NaHCO3 = KHCO3 + NaOH
FeSO4 + KMnO4 + H2SO4 = Fe2(SO4)3 + MnSO4 + K2SO4 + H2O =>
10 FeSO4 + 2 KMnO4 + 8 H2SO4 = 5 Fe2(SO4)3 + 2 MnSO4 + K2SO4 + 8 H2O
Pb(OH)2 = PbOH2O =>
Pb(OH)2 = PbOH2O
CaCO3 + H2SO4 = CaSO4 + H2CO3 =>
CaCO3 + H2SO4 = CaSO4 + H2CO3
CH3COH + H2O + Cu = C2H5OH + CuO =>
CH3COH + H2O + Cu = C2H5OH + CuO
Li + Zn(OH)4 = Li[Zn(OH)4] =>
Li + Zn(OH)4 = Li[Zn(OH)4]
Al(NO3)3 + KOH = Al(OH)3 + KNO3 =>
Al(NO3)3 + 3 KOH = Al(OH)3 + 3 KNO3
KBrO3 + NH3OHCl + H2O = KBr + NO3{-} + Cl{-} + H3O{+} =>
KBrO3 + NH3OHCl + H2O = KBr + NO3{-} + Cl{-} + 2 H3O{+}
Co(NO3)3 + (NH4)2C2O4 = Co2(C2O4)3 + NH4NO3 =>
2 Co(NO3)3 + 3(NH4)2C2O4 = Co2(C2O4)3 + 6 NH4NO3
LiBr(aq) + F(g) = Li(s) + FBr(g) =>
LiBr(aq) + F(g) = Li(s) + FBr(g)
PbO + H2O + NaOH = Na2[Pb(OH)4] =>
PbO + H2O + 2 NaOH = Na2[Pb(OH)4]
Ba(NO2)2 + H2O = BaO + HNO2 =>
Ba(NO2)2 + H2O = BaO + 2 HNO2
(NH4)2SO4(aq) + AgClO4(aq) = Ag2SO4 + NH4ClO4 =>
(NH4)2SO4(aq) + 2 AgClO4(aq) = Ag2SO4 + 2 NH4ClO4
HBr + NaCl = NaBr + HCl =>
HBr + NaCl = NaBr + HCl
K + H2O = KOH + H2 =>
2 K + 2 H2O = 2 KOH + H2
Na2CO3 + HCl = NaCl + H2O + CO2 =>
Na2CO3 + 2 HCl = 2 NaCl + H2O + CO2
PbCl2 + Fe(OH)2 = FeCl2 + Pb(OH)2 =>
PbCl2 + Fe(OH)2 = FeCl2 + Pb(OH)2
ClO2 + OH{-} = ClO2{-} + ClO3{-} + H2O =>
2 ClO2 + 2 OH{-} = ClO2{-} + ClO3{-} + H2O
CH3COClCH3OH = CH3COOHCH3Cl =>
CH3COClCH3OH = CH3COOHCH3Cl
VCl3 = VCl2 + VCl4 =>
2 VCl3 = VCl2 + VCl4
KBr + MnO2 + H2SO4 = MnSO4 + K2SO4 + Br2 + H2O =>
2 KBr + MnO2 + 2 H2SO4 = MnSO4 + K2SO4 + Br2 + 2 H2O
CH3CHO + K2Cr2O7 + H2SO4 = CH3COOH + K2SO4 + Cr2(SO4)3 + H2O =>
3 CH3CHO + K2Cr2O7 + 4 H2SO4 = 3 CH3COOH + K2SO4 + Cr2(SO4)3 + 4 H2O
NaCl + LiSO4 = LiCl + NaSO4 =>
NaCl + LiSO4 = LiCl + NaSO4
Al2(SO4)3 + NaOH = Na2(SO4) + Al(OH)3 =>
Al2(SO4)3 + 6 NaOH = 3 Na2(SO4) + 2 Al(OH)3
SnCl2 + NaOH = NaSn(OH)3 + NaCl =>
SnCl2 + 3 NaOH = NaSn(OH)3 + 2 NaCl
C5H14N2 + HNO2 = C5H12O2 + N2 + H2O =>
C5H14N2 + 2 HNO2 = C5H12O2 + 2 N2 + 2 H2O
Al2(SO4)3 + K2(SO4) + H2O = KAl(SO4)2*12H2O =>
Al2(SO4)3 + K2(SO4) + 24 H2O = 2 KAl(SO4)2*12H2O
Ca2O2 + P2O5 = Ca3(PO4)2 =>
3 Ca2O2 + 2 P2O5 = 2 Ca3(PO4)2
Fe2O3 + SiO2 + SnO2 + Sn = Fe4Si2Sn7O16 =>
2 Fe2O3 + 2 SiO2 + 3 SnO2 + 4 Sn = Fe4Si2Sn7O16
SO2 + H2O + I2 = H{+} + I{-} + SO4{2-} =>
SO2 + 2 H2O + I2 = 4 H{+} + 2 I{-} + SO4{2-}
NaHCO3 = NaOH + CO2 =>
NaHCO3 = NaOH + CO2
HBrO + H2O = H3O + BrO =>
HBrO + H2O = H3O + BrO
BaCl + ZnSO4 = ZnCl + BaSO4 =>
BaCl + ZnSO4 = ZnCl + BaSO4
As2S3 = As2 + S3 =>
As2S3 = As2 + S3
S{-2} + I2 = I{-} + S =>
S{-2} + I2 = 2 I{-} + S
Ag + HS{-} + CrO4{2-} + H2O = Ag2S + Cr(OH)3 + OH{-} =>
6 Ag + 3 HS{-} + 2 CrO4{2-} + 5 H2O = 3 Ag2S + 2 Cr(OH)3 + 7 OH{-}
NaI + KMnO4 + H2SO4 = I2 + MnSO4 + H2O + KSO4 + Na2SO4 =>
4 NaI + KMnO4 + 4 H2SO4 = 2 I2 + MnSO4 + 4 H2O + KSO4 + 2 Na2SO4
Mg7Fe4Si8 + Fe2O3 = Fe + Mg8FeO9Si9O18 + Si =>
8 Mg7Fe4Si8 + 63 Fe2O3 = 151 Fe + 7 Mg8FeO9Si9O18 + Si
SO3 = SO2 + O2 =>
2 SO3 = 2 SO2 + O2
ZnO + Cu(OH)2 = CuO + Zn(OH)2 =>
ZnO + Cu(OH)2 = CuO + Zn(OH)2
KMnO4 + HCl = KCl + MnCl2 + H2O + Cl2 =>
2 KMnO4 + 16 HCl = 2 KCl + 2 MnCl2 + 8 H2O + 5 Cl2
AgOH(heat) = Ag2O + H2O =>
2 AgOH(heat) = Ag2O + H2O
BeO + K2CO3 = K2BeO2 + CO2 =>
BeO + K2CO3 = K2BeO2 + CO2
KMnO4 + NaClO + H2SO4 = MnSO4 + NaClO4 + K2SO4 + H2O =>
6 KMnO4 + 5 NaClO + 9 H2SO4 = 6 MnSO4 + 5 NaClO4 + 3 K2SO4 + 9 H2O
Zn + HCl = ZnCl2 + H = =>
Zn + 2 HCl = ZnCl2 + 2 H
SO4 + H2O = H2SO4 + O2 =>
2 SO4 + 2 H2O = 2 H2SO4 + O2
NO2{-} + H2O = NO3{-} + H{+} + {-} =>
NO2{-} + H2O = NO3{-} + 2 H{+} + 2e
Al2O3 + *HCl = *AlCl3 + *H2O =>
Al2O3 + 6*HCl = 2*AlCl3 + 3*H2O
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