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4 FeS2 + 11 O2 = 2 Fe2O3 + 8 SO2
Pb(OH)4 + HCl = PbCl4 + H2O =>
Pb(OH)4 + 4 HCl = PbCl4 + 4 H2O
C3H8 + O2 = CO2 + H2O =>
C3H8 + 5 O2 = 3 CO2 + 4 H2O
Br2 + KI = I2 + KBr =>
Br2 + 2 KI = I2 + 2 KBr
Ba(OH)2 + HNO3 = Ba(NO3)2 + H2O =>
Ba(OH)2 + 2 HNO3 = Ba(NO3)2 + 2 H2O
HCl(aq) + Na2CO3(aq) = HCO3 + Na2Cl =>
HCl(aq) + Na2CO3(aq) = HCO3 + Na2Cl
Al2O3 + H3PO4 = AlPO4 + H2O =>
Al2O3 + 2 H3PO4 = 2 AlPO4 + 3 H2O
BaCl2 + Na2SO4 = BaSO4 + NaCl =>
BaCl2 + Na2SO4 = BaSO4 + 2 NaCl
Zn + CuBr2 = ZnBr2 + Cu =>
Zn + CuBr2 = ZnBr2 + Cu
CH4 + O2 = CO + H20 =>
10 CH4 + 5 O2 = 10 CO + 2 H20
Fe + O2 = Fe2O3 =>
4 Fe + 3 O2 = 2 Fe2O3
P + O2 = P2O5 =>
4 P + 5 O2 = 2 P2O5
C2H5OH + O2 = CO2 + H2O =>
C2H5OH + 3 O2 = 2 CO2 + 3 H2O
CH4 + O2 = CO + H2O =>
2 CH4 + 3 O2 = 2 CO + 4 H2O
H2SO4 + HI = H2S + I2 + H2O =>
H2SO4 + 8 HI = H2S + 4 I2 + 4 H2O
Li + Br2 = LiBr =>
2 Li + Br2 = 2 LiBr
CaCO3 = CaO + CO2 =>
CaCO3 = CaO + CO2
H2SO4 + NaOH = H2O + Na2SO4 =>
H2SO4 + 2 NaOH = 2 H2O + Na2SO4
AgNo3 + K3Po4 = AgPo4 + K3No3 =>
AgNo3 + K3Po4 = AgPo4 + K3No3
BAO + SO2 = BASO3 =>
BAO + SO2 = BASO3
C2H5OH + O2 = CO2 + H2O =>
C2H5OH + 3 O2 = 2 CO2 + 3 H2O
Rb + BeNO3 = Be + RbNO3 =>
Rb + BeNO3 = Be + RbNO3
H2SO4 + Na2CO3 = CO2 + H2O + Na2SO4 =>
H2SO4 + Na2CO3 = CO2 + H2O + Na2SO4
NaBr + Cl2 = NaCl2 + Br =>
NaBr + Cl2 = NaCl2 + Br
KClO3 = KCl + O2 =>
2 KClO3 = 2 KCl + 3 O2
C2H6 + O2 = CO2 + H2O =>
2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
Pb(OH)2 + HCl = H2O + PbCl2 =>
Pb(OH)2 + 2 HCl = 2 H2O + PbCl2
HNO2 + Au(OH)3 = Au(NO2)3 + H2O =>
3 HNO2 + Au(OH)3 = Au(NO2)3 + 3 H2O
Cu + AgNO3 = Ag + Cu(NO3)2 =>
Cu + 2 AgNO3 = 2 Ag + Cu(NO3)2
C8H18 + O2 = CO2 + H2O =>
2 C8H18 + 25 O2 = 16 CO2 + 18 H2O
Na3PO4 + CaCl2 = Ca3(PO4)2 + NaCl =>
2 Na3PO4 + 3 CaCl2 = Ca3(PO4)2 + 6 NaCl
Mg3N2 + H2O = Mg(OH)2 + NH3 =>
Mg3N2 + 6 H2O = 3 Mg(OH)2 + 2 NH3
CH3CH2CH2OH + K2Cr2O7 + H2SO4 = Cr2(SO4)3 + K2SO2 + CH3CH2COOH + H2O =>
5 CH3CH2CH2OH + 2 K2Cr2O7 + 8 H2SO4 = 2 Cr2(SO4)3 + 2 K2SO2 + 5 CH3CH2COOH + 13 H2O
NaNO3 + PbO = Pb(NO3)2 + Na2O =>
2 NaNO3 + PbO = Pb(NO3)2 + Na2O
Ag + H2SO4 = AgSO4 + SO2 + H2O =>
Ag + 2 H2SO4 = AgSO4 + SO2 + 2 H2O
BaCl2 + Na2SO4 = NaCl + BaSO4 =>
BaCl2 + Na2SO4 = 2 NaCl + BaSO4
CH3CH2OH + K2Cr2O7 + H2SO4 = Cr2(SO4)3 + K2SO2 + CH3CH2COOH + H2O =>
15 CH3CH2OH + 4 K2Cr2O7 + 16 H2SO4 = 4 Cr2(SO4)3 + 4 K2SO2 + 10 CH3CH2COOH + 31 H2O
C7H16 + O2 = C02 + H2O =>
2 C7H16 + 8 O2 = 7 C02 + 16 H2O
K2O + H2S = K2S + H2O =>
K2O + H2S = K2S + H2O
HCl + BACl2 = HCl2 + BACl =>
HCl + BACl2 = HCl2 + BACl
Zn + FeCl3 = ZnCl + Fe =>
3 Zn + FeCl3 = 3 ZnCl + Fe
HCl + BACl2 = HCl2 + BACl =>
HCl + BACl2 = HCl2 + BACl
C7H16 + O2 = CO2 + H2O =>
C7H16 + 11 O2 = 7 CO2 + 8 H2O
CuSo4 + Fe = Cu + Fe2(So4)3 =>
3 CuSo4 + 2 Fe = 3 Cu + Fe2(So4)3
Al + Br2 = AlBr3 =>
2 Al + 3 Br2 = 2 AlBr3
C2H4 + O2 = CO2 + H2O =>
C2H4 + 3 O2 = 2 CO2 + 2 H2O
NAOH + CL = NACL + NACLO + H2O =>
2 NAOH + 2 CL = NACL + NACLO + H2O
KMnO4 + H2SO3 = K2SO4 + MnSO4 + H2SO4 + H2O =>
2 KMnO4 + 5 H2SO3 = K2SO4 + 2 MnSO4 + 2 H2SO4 + 3 H2O
Mg3N2 + H2O = Mg(OH)2 + NH3 =>
Mg3N2 + 6 H2O = 3 Mg(OH)2 + 2 NH3
C2H6 + O2 = CO2 + H2O =>
2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
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