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Cr2O3 + 3 CaCO3 = Ca3(CrO3)2 + 3 CO2
Cu + AgF = CuF2 + Ag =>
Cu + 2 AgF = CuF2 + 2 Ag
P4H4 = PH3 + P4 =>
3 P4H4 = 4 PH3 + 2 P4
Al(OH)3 + H2CO3 = Al2(CO3)3 + H2O =>
2 Al(OH)3 + 3 H2CO3 = Al2(CO3)3 + 6 H2O
Ba + Cr2O7 + OH = BaCrO4 + H2O =>
2 Ba + Cr2O7 + 2 OH = 2 BaCrO4 + H2O
SnO + O2 = SnO2 =>
2 SnO + O2 = 2 SnO2
AgNO3 + K2S2O8 + KOH = AgO + K2SO4 + KNO3 + H2O =>
2 AgNO3 + K2S2O8 + 4 KOH = 2 AgO + 2 K2SO4 + 2 KNO3 + 2 H2O
H2O2 + AgS = AgSO4 + H2O =>
4 H2O2 + AgS = AgSO4 + 4 H2O
Zn(s) + CuCl(aq) = ZnCl(aq) + Cu(g) =>
Zn(s) + CuCl(aq) = ZnCl(aq) + Cu(g)
Na2SO3 + NaMnO4 + HCl = Na2SO4 + MnCl2 + H2O + NaCl =>
5 Na2SO3 + 2 NaMnO4 + 6 HCl = 5 Na2SO4 + 2 MnCl2 + 3 H2O + 2 NaCl
AgCl = Ag{+} + Cl{-} =>
AgCl = Ag{+} + Cl{-}
Ca3(PO4)2(aq) + Al2(SO4)3(aq) = CaSO4(aq) + AlPO4(s) =>
Ca3(PO4)2(aq) + Al2(SO4)3(aq) = 3 CaSO4(aq) + 2 AlPO4(s)
Na + Au(NO3)2 = NaNO3 + Au =>
2 Na + Au(NO3)2 = 2 NaNO3 + Au
CH3CH2OH + O2(g) = CO2 + H2O =>
CH3CH2OH + 3 O2(g) = 2 CO2 + 3 H2O
ZnO + CO2 = ZnCO3 =>
ZnO + CO2 = ZnCO3
Co + HNO3 = Co(NO3)3 + H3 =>
Co + 3 HNO3 = Co(NO3)3 + H3
Fe2SO4 + H2SO4 + KMnO4 = Fe2(SO4)3 + K2SO4 + H2O + MnSO4 =>
5 Fe2SO4 + 16 H2SO4 + 4 KMnO4 = 5 Fe2(SO4)3 + 2 K2SO4 + 16 H2O + 4 MnSO4
MgO(aq) + H2O(l) = Mg(OH)2(aq) =>
MgO(aq) + H2O(l) = Mg(OH)2(aq)
Hg + H3PO4 = Hg3PO4 + H2 =>
6 Hg + 2 H3PO4 = 2 Hg3PO4 + 3 H2
CuBr2 + NaI = CuI + I2 + NaBr =>
2 CuBr2 + 4 NaI = 2 CuI + I2 + 4 NaBr
Cl2 + CuBr2 = Br2 + CuCl2 =>
Cl2 + CuBr2 = Br2 + CuCl2
AlO + H2O = Al2O3 + H2 =>
2 AlO + H2O = Al2O3 + H2
Al(SO)(aq)KOH(aq) = Al(OH)(aq)KSO(aq) =>
Al(SO)(aq)KOH(aq) = Al(OH)(aq)KSO(aq)
CH2CH2 + Cl2 = ClCH2CH2Cl =>
CH2CH2 + Cl2 = ClCH2CH2Cl
Al2(SO4)3 + CH3COONa + H2O = Al(OH)2CH3COO + CH3COOH + Na2(SO4) =>
Al2(SO4)3 + 6 CH3COONa + 4 H2O = 2 Al(OH)2CH3COO + 4 CH3COOH + 3 Na2(SO4)
Fe + KOH + H2O = KFeO2 + H2 =>
2 Fe + 2 KOH + 2 H2O = 2 KFeO2 + 3 H2
Ru + Cl2 = Ru4Cl5 =>
8 Ru + 5 Cl2 = 2 Ru4Cl5
Ag3N + CaCl2 = Ag3Cl2 + CaN =>
Ag3N + CaCl2 = Ag3Cl2 + CaN
Al + CuSO4 + H2O = Al2(SO4)3 + CuO + H2 =>
2 Al + 3 CuSO4 + 3 H2O = Al2(SO4)3 + 3 CuO + 3 H2
FeO2 + K = K2O + Fe =>
FeO2 + 4 K = 2 K2O + Fe
K2FeO4 + HCl = KCl + FeCl3 + Cl2 + H2O =>
2 K2FeO4 + 16 HCl = 4 KCl + 2 FeCl3 + 3 Cl2 + 8 H2O
Ca3[Fe(OH)6]2 + H2SO4 = Fe2(SO4)3 + CaSO4 + H2O =>
Ca3[Fe(OH)6]2 + 6 H2SO4 = Fe2(SO4)3 + 3 CaSO4 + 12 H2O
Cu(CH3COO)2 + O2 = CuO + CO2 + H2O =>
Cu(CH3COO)2 + 4 O2 = CuO + 4 CO2 + 3 H2O
Cu + Co2 = Cu2Co3 =>
4 Cu + 3 Co2 = 2 Cu2Co3
AlF3 + Li2S = Al2S3 + LiF =>
2 AlF3 + 3 Li2S = Al2S3 + 6 LiF
Ag2CO3 + NH3 = Ag(NH3)2{+} + CO3{2-} =>
Ag2CO3 + 4 NH3 = 2 Ag(NH3)2{+} + CO3{2-}
H2Cr2O7 + C2H5OH + H2O = Cr(OH)3 + CH3COOH =>
2 H2Cr2O7 + 3 C2H5OH + H2O = 4 Cr(OH)3 + 3 CH3COOH
H2SO4 + KMnO4 + KI = I2 + K2SO4 + MnO2 + H2O =>
4 H2SO4 + 2 KMnO4 + 6 KI = 3 I2 + 4 K2SO4 + 2 MnO2 + 4 H2O
Cu + HCl + NaNO3 = CuCl2 + NaCl + NO + H2O =>
3 Cu + 8 HCl + 2 NaNO3 = 3 CuCl2 + 2 NaCl + 2 NO + 4 H2O
HCOOH + HS = HCOO + H2S =>
HCOOH + HS = HCOO + H2S
Al(Br)3 + Cl = Al(Cl)3 + Br =>
Al(Br)3 + 3 Cl = Al(Cl)3 + 3 Br
Cr2(SO4)3 + KIO3 + KOH = K2CrO4 + KI + K2SO4 + H2O =>
Cr2(SO4)3 + KIO3 + 10 KOH = 2 K2CrO4 + KI + 3 K2SO4 + 5 H2O
PbO{3} + Sb + NaOH = PbO + NaSbO{2} + H{2}O =>
4 PbO{3} + 3 Sb + 3 NaOH = 4 PbO + 3 NaSbO{2} + 3 H{2}O
N2H4 + O4 = NO2 + H2O =>
2 N2H4 + 3 O4 = 4 NO2 + 4 H2O
Fe(OH)2(aq) + H3PO4(aq) = Fe3(PO4)2(s) + H2O(l) =>
3 Fe(OH)2(aq) + 2 H3PO4(aq) = Fe3(PO4)2(s) + 6 H2O(l)
Se2 + O2 = SeO2 =>
Se2 + 2 O2 = 2 SeO2
S(s) + O(g) = SO =>
S(s) + O(g) = SO
FeSCN = Fe + SCN =>
FeSCN = Fe + SCN
Rb(s) + Cl2 = RbCl =>
2 Rb(s) + Cl2 = 2 RbCl
AgBr + (NH4)2CO3 = (Ag(NH3)2)Br + (NH4)HCO3 =>
AgBr + 2(NH4)2CO3 = (Ag(NH3)2)Br + 2(NH4)HCO3
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