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Fe + 4 HNO3 = Fe(NO3)3 + NO + 2 H2O
Cr2O7{-2} + SO3{-2} + H{+} = Cr{3+} + SO4{-2} + H2O =>
Cr2O7{-2} + 3 SO3{-2} + 8 H{+} = 2 Cr{3+} + 3 SO4{-2} + 4 H2O
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
Cu + NaNO3 + H2SO4 = CuSO4 + Na2SO4 + NO2 + H2O =>
Cu + 2 NaNO3 + 2 H2SO4 = CuSO4 + Na2SO4 + 2 NO2 + 2 H2O
Zn + H3AsO3 + HCl = AsH3 + ZnCl2 + H2O =>
3 Zn + H3AsO3 + 6 HCl = AsH3 + 3 ZnCl2 + 3 H2O
K(s) + H2O(l) = KOH(aq) + H2(g) =>
2 K(s) + 2 H2O(l) = 2 KOH(aq) + H2(g)
Pb3O4 + HCl = PbCl2 + Cl2 + H2O =>
Pb3O4 + 8 HCl = 3 PbCl2 + Cl2 + 4 H2O
Fe2O3 + H = Fe + H2O =>
Fe2O3 + 6 H = 2 Fe + 3 H2O
Ch3COOH + Ba(OH)2 = Ba(Ch3COO)2 + H2O =>
2 Ch3COOH + Ba(OH)2 = Ba(Ch3COO)2 + 2 H2O
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
Na(s) + Cl2(g) = NaCl(s) =>
2 Na(s) + Cl2(g) = 2 NaCl(s)
Cu + HNO3 = Cu(NO3)2 + H2 =>
Cu + 2 HNO3 = Cu(NO3)2 + H2
Fe2O3(s) + CO(g) = Fe3O4(s) + CO2(g) =>
3 Fe2O3(s) + CO(g) = 2 Fe3O4(s) + CO2(g)
ClCH2CHCHCH2Cl + H2 = CH3CHCHCH3 + Cl2 =>
ClCH2CHCHCH2Cl + H2 = CH3CHCHCH3 + Cl2
Ni(NO3)2 + Na2CO3 = NiCO3 + NaNO3 =>
Ni(NO3)2 + Na2CO3 = NiCO3 + 2 NaNO3
Cu + HNO3 = Cu(NO3)2 + NO + H2O =>
3 Cu + 8 HNO3 = 3 Cu(NO3)2 + 2 NO + 4 H2O
K + H2O = KOH + H2 =>
2 K + 2 H2O = 2 KOH + H2
GeCl4 + HCl = H2[GeCl6] =>
GeCl4 + 2 HCl = H2[GeCl6]
CH3CHCHCH3 + H2 = CH3CH2CH2CH3 =>
CH3CHCHCH3 + H2 = CH3CH2CH2CH3
C6H6(l) + O2(g) = CO2(g) + H2O(g) =>
2 C6H6(l) + 15 O2(g) = 12 CO2(g) + 6 H2O(g)
KMnO4 + C3H6 + H2O = C3H7O2 + MnO2 + KOH =>
KMnO4 + C3H6 + H2O = C3H7O2 + MnO2 + KOH
S8 + O2 = SO2 =>
S8 + 8 O2 = 8 SO2
Mn(NO3)2 + (NH4)2S2O8 + H2O = HMnO4 + NH4HSO4 + HNO3 =>
2 Mn(NO3)2 + 5(NH4)2S2O8 + 8 H2O = 2 HMnO4 + 10 NH4HSO4 + 4 HNO3
Li(s) + I2(g) = LiI(s) =>
2 Li(s) + I2(g) = 2 LiI(s)
NaOH + H2SO4 = Na2SO4 + H2O =>
2 NaOH + H2SO4 = Na2SO4 + 2 H2O
K(s) + Br2(l) = KBr(s) =>
2 K(s) + Br2(l) = 2 KBr(s)
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
KOH + H3PO4 = K3PO4 + H2O =>
3 KOH + H3PO4 = K3PO4 + 3 H2O
AgS + HNO3 = AgNO3 + NO + S + H2O =>
3 AgS + 4 HNO3 = 3 AgNO3 + NO + 3 S + 2 H2O
NaH + H2O = NaOH + H2 =>
NaH + H2O = NaOH + H2
CH4 + Br2 = CBr4 + HBr =>
CH4 + 4 Br2 = CBr4 + 4 HBr
Al + H2O = Al2O3 + H =>
2 Al + 3 H2O = Al2O3 + 6 H
Ag2S + HNO3 = AgNO3 + NO + S + H2O =>
3 Ag2S + 8 HNO3 = 6 AgNO3 + 2 NO + 3 S + 4 H2O
NaOH + H2SO4 = Na2SO4 + H2O =>
2 NaOH + H2SO4 = Na2SO4 + 2 H2O
Li + N2 = Li3N =>
6 Li + N2 = 2 Li3N
AS4S4 + HNO3 = H3ASO4 + H2SO4 + NO2 + H2O =>
AS4S4 + 47 HNO3 = H3ASO4 + 7 H2SO4 + 47 NO2 + 15 H2O
CH3CH2CH2CH3 = CH2CHCHCH2 + H2 =>
CH3CH2CH2CH3 = CH2CHCHCH2 + 2 H2
CH4 + Br2 = CBr4 + HBr =>
CH4 + 4 Br2 = CBr4 + 4 HBr
MnBr2 + AgNO3(aq) = Mn(NO3)2(aq) + AgBr(s) =>
MnBr2 + 2 AgNO3(aq) = Mn(NO3)2(aq) + 2 AgBr(s)
MnO4{-} + C2O4{-2} + H{+} = Mn{+2} + CO2 + H2O =>
2 MnO4{-} + 5 C2O4{-2} + 16 H{+} = 2 Mn{+2} + 10 CO2 + 8 H2O
KClO3(s) = KCl(s) + O2(g) =>
2 KClO3(s) = 2 KCl(s) + 3 O2(g)
H2S + Cl = S + HCl =>
H2S + 2 Cl = S + 2 HCl
As + Na = NaAs =>
As + Na = NaAs
Fe + O = Fe2O3 =>
2 Fe + 3 O = Fe2O3
P + (HCl) + I3 = (HI) + PCl3 =>
P + 3(HCl) + I3 = 3(HI) + PCl3
Cr2(SO4)3 + Br2 + NaOH = H2O + Na2CrO4 + Na2SO4 + NaBr =>
Cr2(SO4)3 + 3 Br2 + 16 NaOH = 8 H2O + 2 Na2CrO4 + 3 Na2SO4 + 6 NaBr
Cu2S + HNO3 = Cu(NO3)2 + CuSO4 + NO + H20 =>
5 Cu2S + 20 HNO3 = 5 Cu(NO3)2 + 5 CuSO4 + 10 NO + H20
C6H12O6(s) = C2H6O(l) + CO2(g) =>
C6H12O6(s) = 2 C2H6O(l) + 2 CO2(g)
Cr2(SO4)3 + Br2 + NaOH = H2O + Na2CrO4 + Na2SO4 + NaBr =>
Cr2(SO4)3 + 3 Br2 + 16 NaOH = 8 H2O + 2 Na2CrO4 + 3 Na2SO4 + 6 NaBr
Cr2O7{-2} + SO3{-2} + H{+} = Cr{3+} + SO4{-2} + H2O =>
Cr2O7{-2} + 3 SO3{-2} + 8 H{+} = 2 Cr{3+} + 3 SO4{-2} + 4 H2O
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