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2 Mn2O7 + 4 H2SO4 = 4 MnSO4 + 4 H2O + 5 O2
C2H5OH + H2SO4 + K2Cr2O7 = H2O + K2SO4 + Cr2(SO4)3 + CH3CHO =>
3 C2H5OH + 4 H2SO4 + K2Cr2O7 = 7 H2O + K2SO4 + Cr2(SO4)3 + 3 CH3CHO
Fe(g) + H2O(g) = Fe3O4(s) + H2(g) =>
3 Fe(g) + 4 H2O(g) = Fe3O4(s) + 4 H2(g)
CuCl2 + NaOH = Cu* + (OH)2 + NaCl =>
CuCl2 + 2 NaOH = Cu* + (OH)2 + 2 NaCl
FeS + Ca(NO3)2 + HCl = NO + CaSO4 + CaCl2 + FeCl3 + H2O =>
2 FeS + 3 Ca(NO3)2 + 8 HCl = 6 NO + 2 CaSO4 + CaCl2 + 2 FeCl3 + 4 H2O
NaCO3 + HCl = NaCl + CO2 + OH =>
NaCO3 + HCl = NaCl + CO2 + OH
Zn + H2(SO4) = H2 + Zn2(SO4) =>
2 Zn + H2(SO4) = H2 + Zn2(SO4)
Ni + H2SO2 = Ni2(SO2)3 + H2 =>
2 Ni + 3 H2SO2 = Ni2(SO2)3 + 3 H2
Li2S = Li + S =>
Li2S = 2 Li + S
Al2 + Pb(NO3)2 = Al(NO3)3 + Pb =>
Al2 + 3 Pb(NO3)2 = 2 Al(NO3)3 + 3 Pb
CuS + FeCl3 = FeCl2 + CuCl2 + S =>
CuS + 2 FeCl3 = 2 FeCl2 + CuCl2 + S
CUSO4(aq) + Ag(s) = Ag2SO4(aq) + CU(s) =>
CUSO4(aq) + 2 Ag(s) = Ag2SO4(aq) + CU(s)
ClO3 + I2 + HCl = H2O + ICl3 =>
6 ClO3 + 7 I2 + 36 HCl = 18 H2O + 14 ICl3
C3H8O3 + K2Cr2O7 + H2SO4 = K2SO4 + Cr2(SO4)3 + CO2 + H2O =>
3 C3H8O3 + 7 K2Cr2O7 + 28 H2SO4 = 7 K2SO4 + 7 Cr2(SO4)3 + 9 CO2 + 40 H2O
CO(r) + O2(r) = CO2(r) =>
2 CO(r) + O2(r) = 2 CO2(r)
B2O3Na2O = Na2OB2O3 =>
B2O3Na2O = Na2OB2O3
H2SO4 + NH3 = (NH4)2SO4 = H2O + (NH4)2SO4 =>
H2SO4 + 2 NH3 = (NH4)2SO4
Br2(g) + KOH(ac) = KBr(s) + KBrO3(s) + H2O(l) =>
3 Br2(g) + 6 KOH(ac) = 5 KBr(s) + KBrO3(s) + 3 H2O(l)
CuS + H = Cu + H2S =>
CuS + 2 H = Cu + H2S
KI + Cl2 = KCl + I2KI =>
3 KI + Cl2 = 2 KCl + I2KI
NaClO + Ba(OH)2 = NaOH + Ba(ClO)2 =>
2 NaClO + Ba(OH)2 = 2 NaOH + Ba(ClO)2
AlCl3 + NH4(OH) = NH4(Cl) + Al(OH)3 =>
AlCl3 + 3 NH4(OH) = 3 NH4(Cl) + Al(OH)3
HF + Cu = CuF2 + H =>
2 HF + Cu = CuF2 + 2 H
Fe3O4(s) + H2(g) = Fe(l) + H2O(g) =>
Fe3O4(s) + 4 H2(g) = 3 Fe(l) + 4 H2O(g)
Ca(s) + HI(aq) = CaI2(aq) + H2(g) =>
Ca(s) + 2 HI(aq) = CaI2(aq) + H2(g)
C6H5CH3COCl = C6H5CH2COHCl =>
C6H5CH3COCl = C6H5CH2COHCl
Cu(NO2)2 + K = Cu + K(NO2)2 =>
Cu(NO2)2 + K = Cu + K(NO2)2
Zn + HNO3 + H2O = Zn(H2O)4{2+} + NO2 + NO3{-} =>
Zn + 4 HNO3 + 2 H2O = Zn(H2O)4{2+} + 2 NO2 + 2 NO3{-}
Al + OH{-} + H2O = [Al(OH)4]{-} + H2 =>
2 Al + 2 OH{-} + 6 H2O = 2[Al(OH)4]{-} + 3 H2
CuCO3 + HCl(aq) = CuCl2 + CO2 + H2O =>
CuCO3 + 2 HCl(aq) = CuCl2 + CO2 + H2O
H[AuCl4] + Na2SO3 + H2O = Au + Na2SO4 + HCl =>
2 H[AuCl4] + 3 Na2SO3 + 3 H2O = 2 Au + 3 Na2SO4 + 8 HCl
Fe(OH)3 + BaSO4 = FeOHSO4 + Ba(OH)2 =>
Fe(OH)3 + BaSO4 = FeOHSO4 + Ba(OH)2
BaBr2 + Fe(SO4)3 = Ba(SO4)3 + FeBr2 =>
BaBr2 + Fe(SO4)3 = Ba(SO4)3 + FeBr2
CH3CH2CH2COOH + K = CH3CH2CH2COOK + H2 =>
2 CH3CH2CH2COOH + 2 K = 2 CH3CH2CH2COOK + H2
AgNO3 + H2CO3 = HNO3 + Ag2CO3 =>
2 AgNO3 + H2CO3 = 2 HNO3 + Ag2CO3
AgClO = AgCl + O =>
AgClO = AgCl + O
Fe + BaSO4 = FeSO4 + Ba =>
Fe + BaSO4 = FeSO4 + Ba
Ni(NO3)2 + NH3 = Ni(NH3)2 + NO3 =>
Ni(NO3)2 + 2 NH3 = Ni(NH3)2 + 2 NO3
Sc + O2 = ScO =>
2 Sc + O2 = 2 ScO
H3PO4(ag)NaOH(aq) = H3OH(aq)NaPO4(aq) =>
H3PO4(ag)NaOH(aq) = H3OH(aq)NaPO4(aq)
Cl(g) + P(s) = PCl5(g) =>
5 Cl(g) + P(s) = PCl5(g)
P2O5 + CaCO3 + H2O = CaHPO4*2H2O + CO2 =>
P2O5 + 2 CaCO3 + 5 H2O = 2 CaHPO4*2H2O + 2 CO2
Na[Sb(OH)4] + [Ag(NH3)2]OH = Na[Sb(OH)6] + Ag + NH3 =>
Na[Sb(OH)4] + 2[Ag(NH3)2]OH = Na[Sb(OH)6] + 2 Ag + 4 NH3
Al2O3 + KHSO4 = Al2(SO4)3 + K2SO4 + H2O =>
Al2O3 + 6 KHSO4 = Al2(SO4)3 + 3 K2SO4 + 3 H2O
ZnCO3 + H3C6H5O7 = Zn3(C6H5O7)2 + H2CO3 =>
3 ZnCO3 + 2 H3C6H5O7 = Zn3(C6H5O7)2 + 3 H2CO3
H2SO4 + BaO = BaSO4 + H2O =>
H2SO4 + BaO = BaSO4 + H2O
H2S + S2O = S + H2O =>
H2S + S2O = 3 S + H2O
ZnS + HBr = ZnBr2 + H2S =>
ZnS + 2 HBr = ZnBr2 + H2S
Li{+} + S{-} = LiS =>
Li{+} + S{-} = LiS
Cu + K2SO4 = CuSO4 + K2 =>
Cu + K2SO4 = CuSO4 + K2
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