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4 Fe + 3 O2 = 2 Fe2O3
Pb(NO3)2 + NaCl = PbCl2 + NaNO3 =>
Pb(NO3)2 + 2 NaCl = PbCl2 + 2 NaNO3
H2PtCl6 + NaNO3 = PtO2 + NO2 + NaCl + HNO3 + O2 =>
H2PtCl6 + 6 NaNO3 = PtO2 + 4 NO2 + 6 NaCl + 2 HNO3 + O2
C + H2O = C2H6 + CO2 =>
7 C + 6 H2O = 2 C2H6 + 3 CO2
MgSO4 + NaCH3COOH = Mg(CH3COOH)2 + Na2SO4 =>
MgSO4 + 2 NaCH3COOH = Mg(CH3COOH)2 + Na2SO4
SBr3 = S8 + Br2 =>
8 SBr3 = S8 + 12 Br2
Mg + H2SO4 = MgSO4 + SO2 + H2O =>
Mg + 2 H2SO4 = MgSO4 + SO2 + 2 H2O
TEE + HEE = TEEHEE =>
TEE + HEE = TEEHEE
Zn(NO3)2 + (NH4)2SO4 = ZnSO4 + NH4NO3 =>
Zn(NO3)2 + (NH4)2SO4 = ZnSO4 + 2 NH4NO3
Na + O2 = Na2O =>
4 Na + O2 = 2 Na2O
NaOCl + S + H2O = H2SO4 + NaCl =>
3 NaOCl + S + H2O = H2SO4 + 3 NaCl
H + N = NH =>
H + N = NH
Ca3P2 + KMnO4 + H2O = Ca(OH)2 + MnO2 + KOH + P2 =>
Ca3P2 + 2 KMnO4 + 4 H2O = 3 Ca(OH)2 + 2 MnO2 + 2 KOH + P2
Na2CO3 + Ba(NO3)2 = BaCO3 + Na2(NO3)2 =>
Na2CO3 + Ba(NO3)2 = BaCO3 + Na2(NO3)2
CaCO3 = CaO + CO2 =>
CaCO3 = CaO + CO2
CH3COOH(CH3)2NH = CH3CON(CH3)2H2O =>
CH3COOH(CH3)2NH = CH3CON(CH3)2H2O
HJ + MoO3 = J2 + Mo2O5 + H2O =>
2 HJ + 2 MoO3 = J2 + Mo2O5 + H2O
H3AsO3 + Cr2O3 = H3AsO4 + Cr3 =>
9 H3AsO3 + 3 Cr2O3 = 9 H3AsO4 + 2 Cr3
Mg + H2SO4 = MgSO4 + SO2 + H2O =>
Mg + 2 H2SO4 = MgSO4 + SO2 + 2 H2O
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
KHSO3 + NaOH = K2SO3 + Na2SO3 + H2O =>
2 KHSO3 + 2 NaOH = K2SO3 + Na2SO3 + 2 H2O
N2 = N3 =>
3 N2 = 2 N3
Na + SO42 = NaSO42 =>
Na + SO42 = NaSO42
MnO2 + CO = MnO + CO3 =>
2 MnO2 + CO = 2 MnO + CO3
Cs2[CuF4] + F2 = Cs2[CuF6] =>
Cs2[CuF4] + F2 = Cs2[CuF6]
Fe2O3 + CuCl2 = FeCl3 + Cu2O2 =>
2 Fe2O3 + 6 CuCl2 = 4 FeCl3 + 3 Cu2O2
Al2(SO4)3 + NaCl = Al2SO4 + Na2SO4 + Cl2 =>
Al2(SO4)3 + 4 NaCl = Al2SO4 + 2 Na2SO4 + 2 Cl2
NaNO3H2S = NaSH2NO3 =>
NaNO3H2S = NaSH2NO3
magnesium + hydrochloricacid = magnesiumchloride + hydrogen =>
Mg + 2 HCl = MgCl2 + H2
RbO2 + CO = Rb2CO3 + O2 =>
2 RbO2 + CO = Rb2CO3 + O2
NH4Cl + Ca(OH)2 = CaCl2 + H2O + NH3 =>
2 NH4Cl + Ca(OH)2 = CaCl2 + 2 H2O + 2 NH3
ClFeCl3 = FeCl4 =>
ClFeCl3 = FeCl4
NaClO3 = NaCl + O2 =>
2 NaClO3 = 2 NaCl + 3 O2
FeCl3 + NaOH = Fe(OH)3 + NaCl =>
FeCl3 + 3 NaOH = Fe(OH)3 + 3 NaCl
MgSO4 + HgCl2 = HgSO4 + MgCl2 =>
MgSO4 + HgCl2 = HgSO4 + MgCl2
C2H6 + O2 = CO2 + H2O =>
2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
NaIO3 + HCl = I2 + Cl2 + NaCl + H2O =>
2 NaIO3 + 12 HCl = I2 + 5 Cl2 + 2 NaCl + 6 H2O
CH3CH2COOHHCl = H2CH3CH2COOCl =>
CH3CH2COOHHCl = H2CH3CH2COOCl
(NH4)2O = NH3 + H2O =>
(NH4)2O = 2 NH3 + H2O
Mg(NO3)2 + K3Fe(CN)6 = Mg(CN)2 + K3Fe(NO3)6 =>
3 Mg(NO3)2 + K3Fe(CN)6 = 3 Mg(CN)2 + K3Fe(NO3)6
N2 + O2 = N2O5 =>
2 N2 + 5 O2 = 2 N2O5
H2S + Na2S = H2Na2S2 =>
H2S + Na2S = H2Na2S2
Zn + Al2(SO4)3 = Al + ZnSO4 =>
3 Zn + Al2(SO4)3 = 2 Al + 3 ZnSO4
Se + H2SO4 = SeO2 + SO2 + H2O =>
Se + 2 H2SO4 = SeO2 + 2 SO2 + 2 H2O
Cu + HF = HCu + F =>
Cu + HF = HCu + F
Na3PO4 + KOH = NaOH + K3PO4 =>
Na3PO4 + 3 KOH = 3 NaOH + K3PO4
Na2S + FeCl2 = NaCl2 + SFe2 =>
Na2S + 2 FeCl2 = 2 NaCl2 + SFe2
XeO4 = Xe + O2 =>
XeO4 = Xe + 2 O2
MgNH4PO4*6H2O = H2O + Mg2P2O7 + NH3 =>
2 MgNH4PO4*6H2O = 13 H2O + Mg2P2O7 + 2 NH3
Cu(NO3)2 + HCH3COO = Cu(CH3COO)2 + HNO3 =>
Cu(NO3)2 + 2 HCH3COO = Cu(CH3COO)2 + 2 HNO3
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