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2 Fe + Al2(CO3)3 = Fe2(CO3)3 + 2 Al
Au + ZnSO4 = AuSO4 + Zn =>
Au + ZnSO4 = AuSO4 + Zn
Ni(NO3)2(ac) + NaOH(ac) = Ni(OH)2(s) + NaNO3(ac) =>
Ni(NO3)2(ac) + 2 NaOH(ac) = Ni(OH)2(s) + 2 NaNO3(ac)
Na2O2 + H2SO3 = Na2SO4 + H2O =>
Na2O2 + H2SO3 = Na2SO4 + H2O
KMnO4 + KNO2 + HBr = MnBr2 + KBr + KNO3 + H2O =>
2 KMnO4 + 5 KNO2 + 6 HBr = 2 MnBr2 + 2 KBr + 5 KNO3 + 3 H2O
Cr(OH)3 + IO3{-} + HO{-} = CrO4{2-} + I{-} + H2O =>
2 Cr(OH)3 + IO3{-} + 4 HO{-} = 2 CrO4{2-} + I{-} + 5 H2O
C2H6O(i) + O2(g) = CO2(g) + H2O(i) =>
C2H6O(i) + 3 O2(g) = 2 CO2(g) + 3 H2O(i)
(NH4)2SO4 + Pb(NO3)2 = PbSO4 + NH4NO3 =>
(NH4)2SO4 + Pb(NO3)2 = PbSO4 + 2 NH4NO3
Bi(NO3)3 + NaSn(OH)3 + NaOH = Bi + NaSn(OH)6 + NaNO3 =>
Bi(NO3)3 + NaSn(OH)3 + 3 NaOH = Bi + NaSn(OH)6 + 3 NaNO3
PbS + CH3COOH = Pb(CH3COO)2 + H2S =>
PbS + 2 CH3COOH = Pb(CH3COO)2 + H2S
AgJ = Ag + J2 =>
2 AgJ = 2 Ag + J2
Na2CO3 + MnCO3 + O2 = NaMnO2 + CO2 =>
2 Na2CO3 + 4 MnCO3 + O2 = 4 NaMnO2 + 6 CO2
Cu3(SO3)2 + NaCl = CuCl2 + Na3SO3 =>
Cu3(SO3)2 + 6 NaCl = 3 CuCl2 + 2 Na3SO3
Cr + S8 = Cr2S3 =>
16 Cr + 3 S8 = 8 Cr2S3
Cu(NO3) + Hg2(No3)2 = Cu(No3)2 + Hg2(NO3) =>
Cu(NO3) + Hg2(No3)2 = Cu(No3)2 + Hg2(NO3)
H{-} + NO3{-} + H{+} = NO + H2O =>
3 H{-} + 2 NO3{-} + 5 H{+} = 2 NO + 4 H2O
Mg(s) + AgCl(aq) = Ag(s) + MgCl2(aq) =>
Mg(s) + 2 AgCl(aq) = 2 Ag(s) + MgCl2(aq)
Sc + I = ScI =>
Sc + I = ScI
CH3CH2OH + Ag2O = CH3COOH + Ag + H2O =>
CH3CH2OH + 2 Ag2O = CH3COOH + 4 Ag + H2O
K2CrO4 + KOH + H2S = K3CrO3 + K2SO4 + H2O =>
8 K2CrO4 + 14 KOH + 3 H2S = 8 K3CrO3 + 3 K2SO4 + 10 H2O
C8H8O + HNO3 = C8H7NO3 + H2O =>
C8H8O + HNO3 = C8H7NO3 + H2O
Fe(Cl)3 + Ca(OH)2 = Fe(OH)3 + CaCl2 =>
2 Fe(Cl)3 + 3 Ca(OH)2 = 2 Fe(OH)3 + 3 CaCl2
KCIO3 = KCI + O2 =>
2 KCIO3 = 2 KCI + 3 O2
CS2 + O2 + H2O = CO2 + H2SO4 =>
CS2 + 4 O2 + 2 H2O = CO2 + 2 H2SO4
S2Cl6 + H2O = SO2 + HCl + H2 =>
S2Cl6 + 4 H2O = 2 SO2 + 6 HCl + H2
KMnO4 + HCl = KCl + MnCl2 + H2O + Cl2 =>
2 KMnO4 + 16 HCl = 2 KCl + 2 MnCl2 + 8 H2O + 5 Cl2
Co + HPO3 = Co(PO3)2 + H2 =>
Co + 2 HPO3 = Co(PO3)2 + H2
Sn + NaOH + H2O = Na2(Sn(OH)6) + H2 =>
Sn + 2 NaOH + 4 H2O = Na2(Sn(OH)6) + 2 H2
Fe(NO3)3(aq) + CaSO4(aq) = FeSO4 + Ca(NO3)3 =>
Fe(NO3)3(aq) + CaSO4(aq) = FeSO4 + Ca(NO3)3
AlO3 + H2O = Al(HO2)2 =>
AlO3 + H2O = Al(HO2)2
PBr5 = P + Br =>
PBr5 = P + 5 Br
X2H6 + O2 = H2O + XO2 =>
2 X2H6 + 7 O2 = 6 H2O + 4 XO2
CaBr + AgNo3 = CaNo3 + BrAg =>
CaBr + AgNo3 = CaNo3 + BrAg
Fe2(SO4)3NaCl = Fe2ClNa(SO4)3 =>
Fe2(SO4)3NaCl = Fe2ClNa(SO4)3
FeOHBr + HBr = FeBr2 + H2O =>
FeOHBr + HBr = FeBr2 + H2O
I2 + S{-2} + H2O = SO4{-2} + I{-} + H{+} =>
4 I2 + S{-2} + 4 H2O = SO4{-2} + 8 I{-} + 8 H{+}
Na + Cl2 = NaCl =>
2 Na + Cl2 = 2 NaCl
LiNO3H2O = LiOH2NO3 =>
LiNO3H2O = LiOH2NO3
C2H5NH2(g) + O2 = CO2 + H2O + N2 =>
4 C2H5NH2(g) + 15 O2 = 8 CO2 + 14 H2O + 2 N2
MgCO3 + Na2HPO4 = Na2CO3 + MgHPO4 =>
MgCO3 + Na2HPO4 = Na2CO3 + MgHPO4
Mn3O4 + Na2O2 = Na2MnO4 + Na2O =>
Mn3O4 + 5 Na2O2 = 3 Na2MnO4 + 2 Na2O
Si + PbO2 = SiO2 + PbO =>
Si + 2 PbO2 = SiO2 + 2 PbO
Na2CO3(aq) + HNO3(aq) = CO2(g) + H2O(g) + NaNO3(aq) =>
Na2CO3(aq) + 2 HNO3(aq) = CO2(g) + H2O(g) + 2 NaNO3(aq)
Mn + HCl = MnCl2 + H2 =>
Mn + 2 HCl = MnCl2 + H2
MgCl2 + H2O = MgO + HCl =>
MgCl2 + H2O = MgO + 2 HCl
FeCl3 + NaOH = Fe(OH)3 + NaCl =>
FeCl3 + 3 NaOH = Fe(OH)3 + 3 NaCl
K2[ON(SO3)2] + (NH4)2SO4 = K2SO4 + HON(SO3)2 + SO2 + NH3 =>
10 K2[ON(SO3)2] + 7(NH4)2SO4 = 10 K2SO4 + 8 HON(SO3)2 + SO2 + 16 NH3
Fe2O3 + KCN + HCl = K3[Fe(CN)6] + KCl + H2O =>
Fe2O3 + 12 KCN + 6 HCl = 2 K3[Fe(CN)6] + 6 KCl + 3 H2O
Cr + SnCl4 = CrCl3 + Sn =>
4 Cr + 3 SnCl4 = 4 CrCl3 + 3 Sn
Cr + Cl2 = CrCl3 =>
2 Cr + 3 Cl2 = 2 CrCl3
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