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Fe2 + 2 S = 2 FeS
FeS2 + O2 + H2O = FeSO4 + H2SO =>
FeS2 + 2 O2 + H2O = FeSO4 + H2SO
CaCl2(aq) + HCl(aq) = HCl2(aq) + CaCl(s) =>
CaCl2(aq) + HCl(aq) = HCl2(aq) + CaCl(s)
C2H5Cl + NaOH = C2H4 + H2O + NaCl =>
C2H5Cl + NaOH = C2H4 + H2O + NaCl
Pb + AgNO3 = Pb(NO3)2 + Ag =>
Pb + 2 AgNO3 = Pb(NO3)2 + 2 Ag
SnS2 + KOH = K2SnS3 + K2SnO3 + H2O =>
3 SnS2 + 6 KOH = 2 K2SnS3 + K2SnO3 + 3 H2O
Mg + HNO3 = Mg(NO3)2 + N2O + H2O =>
4 Mg + 10 HNO3 = 4 Mg(NO3)2 + N2O + 5 H2O
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
PbCrO4 + KI + HCl = PbCl2 + CrI3 + KCl + I2 + H2O =>
2 PbCrO4 + 12 KI + 16 HCl = 2 PbCl2 + 2 CrI3 + 12 KCl + 3 I2 + 8 H2O
Fe + NaNO3 + NaOH = Na2FeO4 + N2 + H2O =>
5 Fe + 6 NaNO3 + 4 NaOH = 5 Na2FeO4 + 3 N2 + 2 H2O
Y + Ni + Al = YNi2Al30 =>
Y + 2 Ni + 30 Al = YNi2Al30
K + FeBr3 + KMnO4 = Fe2O3 + MnO2 + KBr =>
9 K + 4 FeBr3 + 3 KMnO4 = 2 Fe2O3 + 3 MnO2 + 12 KBr
NaBr + HCl = NaCl + Br2 + H2 =>
2 NaBr + 2 HCl = 2 NaCl + Br2 + H2
FeCl2 + H2O = [Fe(H2O)6]{2+} + Cl{-} =>
FeCl2 + 6 H2O = [Fe(H2O)6]{2+} + 2 Cl{-}
PI3 + H2O + I2 = HI + H3PO4 =>
PI3 + 4 H2O + I2 = 5 HI + H3PO4
KClO4 + Al = KCl + Al2O3 =>
3 KClO4 + 8 Al = 3 KCl + 4 Al2O3
CH3NH3Cl + Ca(OH)2 = CH3NH2 + CaCl2 + H2O =>
2 CH3NH3Cl + Ca(OH)2 = 2 CH3NH2 + CaCl2 + 2 H2O
Rb20 + O2 = Rb2O =>
Rb20 + 5 O2 = 10 Rb2O
Sc + I2 = Sc2I =>
4 Sc + I2 = 2 Sc2I
Na2CO3 + H3PO4 = Na3PO4 + H2CO3 =>
3 Na2CO3 + 2 H3PO4 = 2 Na3PO4 + 3 H2CO3
FeS2 + HNO3 = Fe2(SO4)3 + NO2 + H2O + H2SO4 =>
2 FeS2 + 30 HNO3 = Fe2(SO4)3 + 30 NO2 + 14 H2O + H2SO4
NaNO3 + KCI = KNO3 + NaCI =>
NaNO3 + KCI = KNO3 + NaCI
Pb(NO3)2(aq) + NH4OH(aq) = Pb(OH)2(s) + NH4NO3(aq) =>
Pb(NO3)2(aq) + 2 NH4OH(aq) = Pb(OH)2(s) + 2 NH4NO3(aq)
FeSO4 + NaClO3 + H2SO4 = Fe2(SO4)3 + NaCl + H2O =>
6 FeSO4 + NaClO3 + 3 H2SO4 = 3 Fe2(SO4)3 + NaCl + 3 H2O
Mg + HNO3 = Mg(NO3)2 + NO2 + H2O =>
Mg + 4 HNO3 = Mg(NO3)2 + 2 NO2 + 2 H2O
Sb + Br2 + KOH = K3[SbO4] + KBr + H2O =>
2 Sb + 5 Br2 + 16 KOH = 2 K3[SbO4] + 10 KBr + 8 H2O
Ca(HCO3)2 + Ca(OH)2 = Ca(CO3) + H2O =>
Ca(HCO3)2 + Ca(OH)2 = 2 Ca(CO3) + 2 H2O
FeSO4 + HNO3 + H2SO4 = Fe2(SO4)3 + NO + H2O =>
6 FeSO4 + 2 HNO3 + 3 H2SO4 = 3 Fe2(SO4)3 + 2 NO + 4 H2O
CuCO3(aq) + HNO3(aq) = Cu(NO3)2(aq) + CO2(g) + H2O =>
CuCO3(aq) + 2 HNO3(aq) = Cu(NO3)2(aq) + CO2(g) + H2O
Ag2O = Ag + O2 =>
2 Ag2O = 4 Ag + O2
CsH + H2O = Cs2O + H3 =>
6 CsH + 3 H2O = 3 Cs2O + 4 H3
KMnO4 + MnSO4 + H2O = MnO2 + H2SO4 + KOH =>
2 KMnO4 + 3 MnSO4 + 4 H2O = 5 MnO2 + 3 H2SO4 + 2 KOH
Cr2O7K2 + H2SO4 + KI = K2SO4 + Cr2(SO4)3 + H2O + I2 =>
Cr2O7K2 + 7 H2SO4 + 6 KI = 4 K2SO4 + Cr2(SO4)3 + 7 H2O + 3 I2
CH3COOH + C3H7OH = CH3COOC3H7 + H2O =>
CH3COOH + C3H7OH = CH3COOC3H7 + H2O
AuCl3 + HCOH + NaOH = HCOONa + NaCl + Au + H2O =>
2 AuCl3 + 3 HCOH + 9 NaOH = 3 HCOONa + 6 NaCl + 2 Au + 6 H2O
MgCl2 + AgNO3 = AgCl + Mg(NO3)2 =>
MgCl2 + 2 AgNO3 = 2 AgCl + Mg(NO3)2
W + Cl2 = WCl6 =>
W + 3 Cl2 = WCl6
KOHBa(OH)2 = K(OH)3Ba =>
KOHBa(OH)2 = K(OH)3Ba
MgCl2 + H2 = Mg + HCl =>
MgCl2 + H2 = Mg + 2 HCl
BeCO3 + Al = CO3 + BeAl =>
BeCO3 + Al = CO3 + BeAl
Al2O3 + KOH + H2O = K3Al(OH)6 =>
Al2O3 + 6 KOH + 3 H2O = 2 K3Al(OH)6
CaF2(aq) + K3PO4(aq) = Ca3(PO4)2(s) + KF(aq) =>
3 CaF2(aq) + 2 K3PO4(aq) = Ca3(PO4)2(s) + 6 KF(aq)
Fe + HCl = FeCl2 + H2 =>
Fe + 2 HCl = FeCl2 + H2
H2SO4 + NaOH = Na2SO4 + H2O =>
H2SO4 + 2 NaOH = Na2SO4 + 2 H2O
ZnSO4 + KI + KIO3 + H2O = Zn5(OH)8SO4 + K2SO4 + I2 =>
15 ZnSO4 + 20 KI + 4 KIO3 + 12 H2O = 3 Zn5(OH)8SO4 + 12 K2SO4 + 12 I2
KMnO4 + KHSO4 + NaHSO3 = MnSO4 + K2SO4 + Na2SO4 + H2O =>
4 KMnO4 + 2 KHSO4 + 10 NaHSO3 = 4 MnSO4 + 3 K2SO4 + 5 Na2SO4 + 6 H2O
Zn + MnSO4 = MnZn + SO4 =>
Zn + MnSO4 = MnZn + SO4
BiCl3 + Na2[Sn(OH)4] + NaOH = Bi + Na2[Sn(OH)6] + NaCl =>
2 BiCl3 + 3 Na2[Sn(OH)4] + 6 NaOH = 2 Bi + 3 Na2[Sn(OH)6] + 6 NaCl
Ca(NO3)2(aq) + Na3P(aq) = NaNO3(aq) + Ca3P2(s) =>
3 Ca(NO3)2(aq) + 2 Na3P(aq) = 6 NaNO3(aq) + Ca3P2(s)
C6H6 + CH3Br = C6H6CH3Br =>
C6H6 + CH3Br = C6H6CH3Br
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