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Ca(s) + 2 H2O(l) = Ca(OH)2(aq) + H2(g)
YBa2Cu3O7 + H2 = Y2O3 + BaO + Cu + H2O =>
2 YBa2Cu3O7 + 7 H2 = Y2O3 + 4 BaO + 6 Cu + 7 H2O
CH3OH + O2 = CO2 + H2O =>
2 CH3OH + 3 O2 = 2 CO2 + 4 H2O
(NH4)2SO4 = NH3 + NH4HSO4 =>
(NH4)2SO4 = NH3 + NH4HSO4
Fe2 + F2 = FeF3 =>
Fe2 + 3 F2 = 2 FeF3
CH2(OH)(CHOH)2CHO + HNO3 = COOH(CHOH)2COOH + NO + H2O =>
CH2(OH)(CHOH)2CHO + 2 HNO3 = COOH(CHOH)2COOH + 2 NO + 2 H2O
Fe(NO3)3 + HCl = FeCl3 + HNO3 =>
Fe(NO3)3 + 3 HCl = FeCl3 + 3 HNO3
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
CH3OH + O2 = CO2 + H2O =>
2 CH3OH + 3 O2 = 2 CO2 + 4 H2O
Fe2O3 + CO = Fe + CO2 =>
Fe2O3 + 3 CO = 2 Fe + 3 CO2
CH3SO3H + COCl2 = CH3SO2Cl + CO2 + HCl =>
CH3SO3H + COCl2 = CH3SO2Cl + CO2 + HCl
BaCI + H2SO4 = BaSO4 + CIH2 =>
BaCI + H2SO4 = BaSO4 + CIH2
OH + C8H5KO4 = C8H4KO4 + H2O =>
OH + C8H5KO4 = C8H4KO4 + H2O
H2S + O2 = SO2 + H2O =>
2 H2S + 3 O2 = 2 SO2 + 2 H2O
PH3 + Cl2 = PCl3 + HCl =>
PH3 + 3 Cl2 = PCl3 + 3 HCl
AgNO3 + Na3PO4 = Ag3PO4 + NaNO3 =>
3 AgNO3 + Na3PO4 = Ag3PO4 + 3 NaNO3
NH4I = NH3 + HI =>
NH4I = NH3 + HI
Fe2O3 + H2SO4 = Fe2(SO4)3 + H2O* =>
Fe2O3 + 3 H2SO4 = Fe2(SO4)3 + 3 H2O*
CH3OH + O2 = CO2 + H2O =>
2 CH3OH + 3 O2 = 2 CO2 + 4 H2O
Cr2O7{2-} + Sn{2+} + H{+} = Cr{3+} + Sn{4+} + H2O =>
Cr2O7{2-} + 3 Sn{2+} + 14 H{+} = 2 Cr{3+} + 3 Sn{4+} + 7 H2O
CH2O + K2Cr2O7 = CO2 + Cr + K + H =>
7 CH2O + K2Cr2O7 = 7 CO2 + 2 Cr + 2 K + 14 H
Fe + O2 = Fe2O3 =>
4 Fe + 3 O2 = 2 Fe2O3
BaCI2 + MgSO4 = BaSO4 + MgCI2 =>
BaCI2 + MgSO4 = BaSO4 + MgCI2
FeBr3 = Br + Fe =>
FeBr3 = 3 Br + Fe
BaCl2 + Na2SO4 = BaSO4 + NaCl =>
BaCl2 + Na2SO4 = BaSO4 + 2 NaCl
C2H2 + C2H6 = C3H8 =>
C2H2 + 5 C2H6 = 4 C3H8
Pb(OH)2 + HCl = H2O + PbCl2 =>
Pb(OH)2 + 2 HCl = 2 H2O + PbCl2
Cu3Zn2 + HCl = Cu + ZnCl2 + H2 =>
Cu3Zn2 + 4 HCl = 3 Cu + 2 ZnCl2 + 2 H2
MgS + CaO = MgO + CaS =>
MgS + CaO = MgO + CaS
FeCH3 + KMnO4 + H2SO4 = FeCOOH + K2SO4 + MnSO4 + H2O =>
5 FeCH3 + 6 KMnO4 + 9 H2SO4 = 5 FeCOOH + 3 K2SO4 + 6 MnSO4 + 14 H2O
NH4C2H3O2 + AgNO3 = AgC2H3O2 + NH4NO3 =>
NH4C2H3O2 + AgNO3 = AgC2H3O2 + NH4NO3
C7O2H5MgBr + HCl = C7O2H6 + ClMgBr =>
C7O2H5MgBr + HCl = C7O2H6 + ClMgBr
Ca(NO3)2 = O2 + CaO + NO2 =>
2 Ca(NO3)2 = O2 + 2 CaO + 4 NO2
K2Cr2O7 + KBr + H2SO4 = Cr2(SO4)3 + Br2 + H2O + K2SO4 =>
K2Cr2O7 + 6 KBr + 7 H2SO4 = Cr2(SO4)3 + 3 Br2 + 7 H2O + 4 K2SO4
Al + NO2 + OH = NH4 + AlO2 =>
3 Al + NO2 + 4 OH = NH4 + 3 AlO2
Fe(Co3) = Fe2 + Co2 =>
2 Fe(Co3) = Fe2 + 3 Co2
BaCI2 + Na2CO3 = Na2CI2 + BaCO3 =>
BaCI2 + Na2CO3 = Na2CI2 + BaCO3
Li2(CrO4) + Zn(NO3)2 = Li(NO3) + ZnCrO4 =>
Li2(CrO4) + Zn(NO3)2 = 2 Li(NO3) + ZnCrO4
POBr3 + Ba(OH)2 = Ba3(PO4)2 + BaBr2 + H2O =>
2 POBr3 + 6 Ba(OH)2 = Ba3(PO4)2 + 3 BaBr2 + 6 H2O
Mn + O2 = Mn2O7 =>
4 Mn + 7 O2 = 2 Mn2O7
Al(OH)3 + H2CO3 = Al2(CO3)3 + H2O =>
2 Al(OH)3 + 3 H2CO3 = Al2(CO3)3 + 6 H2O
Ca + AgI = I2 + Ag2Ca =>
Ca + 2 AgI = I2 + Ag2Ca
C6H5NO2 + HBr = C6H2Br3NH3Br + H2O =>
C6H5NO2 + 4 HBr = C6H2Br3NH3Br + 2 H2O
PotassiumPhosphate + Bismuth(V)Acetate = Bismuth(V)Phosphate + PotassiumAcetate =>
PotassiumPhosphate + Bismuth(V)Acetate = Bismuth(V)Phosphate + PotassiumAcetate
K2SO4 + CsOH = KOH + Cs2SO4 =>
K2SO4 + 2 CsOH = 2 KOH + Cs2SO4
Pb3N2 + NaOH = Pb(OH)2 + Na3N =>
Pb3N2 + 6 NaOH = 3 Pb(OH)2 + 2 Na3N
Zr + H2S = ZrH2 + S =>
Zr + H2S = ZrH2 + S
NaCH3CO2 + KOH = NaOH + KCH3CO2 =>
NaCH3CO2 + KOH = NaOH + KCH3CO2
Zr(OH)4(s) + HNO3(aq) = Zr(NO3)(aq) + H(OH)4 =>
Zr(OH)4(s) + HNO3(aq) = Zr(NO3)(aq) + H(OH)4
C + S = CS2 =>
C + 2 S = CS2
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