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2 Fe + 3 Cl2 = 2 FeCl3
Zn + SnSO4 = ZnSO4 + Sn =>
Zn + SnSO4 = ZnSO4 + Sn
Fe2{+} + HCl + H2O2 = Cl{-} + Fe{3+} + H2O =>
2 Fe2{+} + 10 HCl + 5 H2O2 = 10 Cl{-} + 4 Fe{3+} + 10 H2O
BaCl2 + Na2SO4 = NaCl + BaSO4 =>
BaCl2 + Na2SO4 = 2 NaCl + BaSO4
C4H6 + K2Cr2O7 + H2SO4 = Cr2(SO4)3 + CH3COOH + K2SO4 + H2O =>
C4H6 + K2Cr2O7 + 4 H2SO4 = Cr2(SO4)3 + 2 CH3COOH + K2SO4 + 3 H2O
Zn + KOH + H2O = K2(Zn(OH)4) + H2 =>
Zn + 2 KOH + 2 H2O = K2(Zn(OH)4) + H2
H2SO4(aq) + Ca(OH)2 = CaSO4 + H2O =>
H2SO4(aq) + Ca(OH)2 = CaSO4 + 2 H2O
NiCl2 + HBr = NiBr2 + HCl =>
NiCl2 + 2 HBr = NiBr2 + 2 HCl
ZnBr2 + Ni = NiBr2 + Zn =>
ZnBr2 + Ni = NiBr2 + Zn
Pb + Pb{4+} = Pb{2+} =>
Pb + Pb{4+} = 2 Pb{2+}
HCe + KCeO3 = KCe + Ce2 + H2O =>
6 HCe + KCeO3 = KCe + 3 Ce2 + 3 H2O
CH2OHCOOH + NaOH = CH2OHCOONa + H2O =>
CH2OHCOOH + NaOH = CH2OHCOONa + H2O
CuSO4 + NaOH = Cu(OH)2 + Na2SO4 =>
CuSO4 + 2 NaOH = Cu(OH)2 + Na2SO4
KI + AgNo3 = AgI + KNo3 =>
KI + AgNo3 = AgI + KNo3
Cl + KNO3 + H2O = KClO3 + KCl + HNO3 =>
6 Cl + 6 KNO3 + 3 H2O = KClO3 + 5 KCl + 6 HNO3
NO3 + H2O + NO = HNO3 =>
3 NO3 + 2 H2O + NO = 4 HNO3
NaCl + (CH3COO)2Pb = CH3COONa + PbCl2 =>
2 NaCl + (CH3COO)2Pb = 2 CH3COONa + PbCl2
NaCl2 + Br2 = NaBr + Cl2 =>
2 NaCl2 + Br2 = 2 NaBr + 2 Cl2
KNO3 = KNO2 + O2 =>
2 KNO3 = 2 KNO2 + O2
C2H6 + Br2 = C6H5Br + HBr =>
3 C2H6 + 7 Br2 = C6H5Br + 13 HBr
C2H4(OH)2 + K = C2H4(OK)2 + H2 =>
C2H4(OH)2 + 2 K = C2H4(OK)2 + H2
NH4{+} + H2O = NH3 + H3O{+} =>
NH4{+} + H2O = NH3 + H3O{+}
C4H10 + O2 = CO2 + H2O =>
2 C4H10 + 13 O2 = 8 CO2 + 10 H2O
NH3 + Cl2 = NH4Cl + N2H4 =>
4 NH3 + Cl2 = 2 NH4Cl + N2H4
Ti2(CO3)3 + H2SO4 = Ti2(SO4)3 + H2O + CO2 =>
Ti2(CO3)3 + 3 H2SO4 = Ti2(SO4)3 + 3 H2O + 3 CO2
NaBiO3 + U2(SO4)3 + H2SO4 = (BiO)2SO4 + Na2SO4 + U(SO4)2 + H2O =>
2 NaBiO3 + 2 U2(SO4)3 + 4 H2SO4 = (BiO)2SO4 + Na2SO4 + 4 U(SO4)2 + 4 H2O
Cr2O3 + Si = Cr + SiO2 =>
2 Cr2O3 + 3 Si = 4 Cr + 3 SiO2
Ba(NO3)2 + CuSO4 = BaSO4 + Cu(NO3)2 =>
Ba(NO3)2 + CuSO4 = BaSO4 + Cu(NO3)2
KClO3 + AgNO3 = AgClO3 + KNO3 =>
KClO3 + AgNO3 = AgClO3 + KNO3
B(OH)3 + NaCl = NaOH + BCl3 =>
B(OH)3 + 3 NaCl = 3 NaOH + BCl3
SO3 + NaOH = Na2SO4 + H2O =>
SO3 + 2 NaOH = Na2SO4 + H2O
HgCl2 + Fe = FeCl2 + Hg =>
HgCl2 + Fe = FeCl2 + Hg
S + KClO3 = KCl + SO4 =>
3 S + 4 KClO3 = 4 KCl + 3 SO4
H2SO4 + HJ = J2 + H2S + H2O =>
H2SO4 + 8 HJ = 4 J2 + H2S + 4 H2O
(c)C2H6(g) + O2(g) = CO2(g) + H2O(g) =>
2(c)C2H6(g) + 7 O2(g) = 4 CO2(g) + 6 H2O(g)
Mg(NO3)2 + Mg = MgNO3 =>
Mg(NO3)2 + Mg = 2 MgNO3
Na2CO3 + HCl = NaCl + H2O + CO2 =>
Na2CO3 + 2 HCl = 2 NaCl + H2O + CO2
Cu(NO3)2 + Na = Cu + NaNO3 =>
Cu(NO3)2 + 2 Na = Cu + 2 NaNO3
Cr + H3BO3 = CrBO3 + H2 =>
2 Cr + 2 H3BO3 = 2 CrBO3 + 3 H2
LiI + HNO3 = LiNO3 + I2 + NO + H2O =>
6 LiI + 8 HNO3 = 6 LiNO3 + 3 I2 + 2 NO + 4 H2O
Al(OH)3 + Na2S = Al2S3 + NaOH =>
2 Al(OH)3 + 3 Na2S = Al2S3 + 6 NaOH
KClO3 = KCl + KClO4 =>
4 KClO3 = KCl + 3 KClO4
HNO3 + (OH)2 = H2O + NO3 =>
2 HNO3 + (OH)2 = 2 H2O + 2 NO3
MnO2 + K2CO3 = K2MnO4 + CO =>
MnO2 + K2CO3 = K2MnO4 + CO
H2O2(ag) = H2O(l) + O2(g) =>
2 H2O2(ag) = 2 H2O(l) + O2(g)
MgO2 + HCl(aq) = MgCl2 + H2O(l) + Cl(g) =>
MgO2 + 4 HCl(aq) = MgCl2 + 2 H2O(l) + 2 Cl(g)
Zn + As4O6 + HNO3 = AsH3 + Zn(NO3)2 + H2O =>
12 Zn + As4O6 + 24 HNO3 = 4 AsH3 + 12 Zn(NO3)2 + 6 H2O
Na2SO4 = Na + SO4 =>
Na2SO4 = 2 Na + SO4
Si + O2 = SiO =>
2 Si + O2 = 2 SiO
H2CrO4 + CuOH = Cu2CrO4 + H2O =>
H2CrO4 + 2 CuOH = Cu2CrO4 + 2 H2O
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