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4 FeS + 7 O2 = 2 Fe2O3 + 4 SO2
H2SO4 + KOH = K2SO4 + H2O = =>
H2SO4 + 2 KOH = K2SO4 + 2 H2O
NaOH(aq) + H2SO4(aq) = NaHSO4(aq) + H2O(l) =>
NaOH(aq) + H2SO4(aq) = NaHSO4(aq) + H2O(l)
AgCN + CN{-} = [Ag(CN)2]{-} =>
AgCN + CN{-} = [Ag(CN)2]{-}
HN03 + Au = Au(N03)3 + H2 =>
6 HN03 + 2 Au = 2 Au(N03)3 + 3 H2
HNO3 + K2TeO3 = H2TeO3 + KNO3 =>
2 HNO3 + K2TeO3 = H2TeO3 + 2 KNO3
Pb(OH)2 + HCl = PbCl2 + H2O =>
Pb(OH)2 + 2 HCl = PbCl2 + 2 H2O
Al(HSO3)3 = Al2(SO3)3 + SO2 + H2O =>
2 Al(HSO3)3 = Al2(SO3)3 + 3 SO2 + 3 H2O
H2SO4(aq) + NaOH(aq) = Na2SO4(aq) + H2O =>
H2SO4(aq) + 2 NaOH(aq) = Na2SO4(aq) + 2 H2O
Pb(OH)2 + HCl = PbCl2 + H2O =>
Pb(OH)2 + 2 HCl = PbCl2 + 2 H2O
Mn3O4 + KCIO3 + K2CO3 = K2MnO4 + KCI + CO2 =>
3 Mn3O4 + 5 KCIO3 + 9 K2CO3 = 9 K2MnO4 + 5 KCI + 9 CO2
Al(NO3)3 + NaOH = Al(OH)3 + NaNO3 =>
Al(NO3)3 + 3 NaOH = Al(OH)3 + 3 NaNO3
K4Fe(CN)6 + KMnO4 + H2SO4 = KHSO4 + Fe2(SO4)3 + MnSO4 + HNO3 + CO2 + H2O =>
10 K4Fe(CN)6 + 122 KMnO4 + 299 H2SO4 = 162 KHSO4 + 5 Fe2(SO4)3 + 122 MnSO4 + 60 HNO3 + 60 CO2 + 188 H2O
Ca(NO3)2 + Fe(CN)3 = Ca(CN)2 + Fe(NO3)3 =>
3 Ca(NO3)2 + 2 Fe(CN)3 = 3 Ca(CN)2 + 2 Fe(NO3)3
NH4Cl + NaOH = NH3 + H2O + NaCl = =>
NH4Cl + NaOH = NH3 + H2O + NaCl
HNO2 + NaOH = NaNO2 + H2O =>
HNO2 + NaOH = NaNO2 + H2O
KNO3 + CrSO4 + H2SO4 = N2 + Cr2(SO4)3 + K2SO4 + H2O =>
2 KNO3 + 10 CrSO4 + 6 H2SO4 = N2 + 5 Cr2(SO4)3 + K2SO4 + 6 H2O
LiH + H2O = H2 + Li2O =>
2 LiH + H2O = 2 H2 + Li2O
NaOH(aq) + H2SO4(aq) = Na2SO4 + H2O =>
2 NaOH(aq) + H2SO4(aq) = Na2SO4 + 2 H2O
Ca(OH)2 + BaCl2 = CaCl2 + Ba(OH)2 =>
Ca(OH)2 + BaCl2 = CaCl2 + Ba(OH)2
NaI + Al2(CO3)3 = AlI3 + Na2CO3 =>
6 NaI + Al2(CO3)3 = 2 AlI3 + 3 Na2CO3
B + Fe3O4 = B2O3 + Fe =>
8 B + 3 Fe3O4 = 4 B2O3 + 9 Fe
HCOOH + HCl = HCOOCl + H2 =>
HCOOH + HCl = HCOOCl + H2
CH4 + C2H4 = C20H42 =>
2 CH4 + 19 C2H4 = 2 C20H42
Na2Cr2O7 + FeSO4 + HCl = NaCl + CrCl3 + FeCl3 + H2O + Fe2(SO4)3 =>
Na2Cr2O7 + 6 FeSO4 + 14 HCl = 2 NaCl + 2 CrCl3 + 2 FeCl3 + 7 H2O + 2 Fe2(SO4)3
HClO4 + NaOH = HOH + NaClO4 =>
HClO4 + NaOH = HOH + NaClO4
Ni(OH)2 + NH3 = [Ni(NH3)4](OH)2 =>
Ni(OH)2 + 4 NH3 = [Ni(NH3)4](OH)2
CaC2O4 = CaC2 + O4 =>
CaC2O4 = CaC2 + O4
NaPO4 + ZnSO4 = Na2SO4 + Zn(PO4)2 =>
2 NaPO4 + ZnSO4 = Na2SO4 + Zn(PO4)2
CuO(s) + C(g) = Cu(s) + CO2(g) =>
2 CuO(s) + C(g) = 2 Cu(s) + CO2(g)
HCl(aq) + Na2SO3(s) = NaCl + SO2 + H2O =>
2 HCl(aq) + Na2SO3(s) = 2 NaCl + SO2 + H2O
(Zn(H2O)4)Cl2 + NH4OH = (Zn(NH3)4)Cl2 + H2O =>
(Zn(H2O)4)Cl2 + 4 NH4OH = (Zn(NH3)4)Cl2 + 8 H2O
(NH4)6Mo7O24 + Na2HPO4 + H2SO4 = (NH4)3PMo12O40 + NH4SO4 + NaSO4 + H2O + H2 =>
24(NH4)6Mo7O24 + 14 Na2HPO4 + 130 H2SO4 = 14(NH4)3PMo12O40 + 102 NH4SO4 + 28 NaSO4 + 72 H2O + 65 H2
FeSO4 + KMnO4 + H2SO4 = Fe2(SO4)3 + MnSO4 + K2SO4 + H2O =>
10 FeSO4 + 2 KMnO4 + 8 H2SO4 = 5 Fe2(SO4)3 + 2 MnSO4 + K2SO4 + 8 H2O
CaSO4 + Co3(PO4)2 = Ca3(PO4)2 + CoSO4 =>
3 CaSO4 + Co3(PO4)2 = Ca3(PO4)2 + 3 CoSO4
HNO2 + Ni(OH)2 = H(OH)2 + NiNO2 =>
HNO2 + Ni(OH)2 = H(OH)2 + NiNO2
CH3CH2CH2CH3 + O2 = CO2 + H22O =>
22 CH3CH2CH2CH3 + 93 O2 = 88 CO2 + 10 H22O
As + NaOH + H2O2 = Na3AsO4 + H2O =>
2 As + 6 NaOH + 5 H2O2 = 2 Na3AsO4 + 8 H2O
KCrO2 + I2 + KOH = K2CrO4 + KI + H2O =>
2 KCrO2 + 3 I2 + 8 KOH = 2 K2CrO4 + 6 KI + 4 H2O
C15H29OH + O2 = CO2 + H2O =>
C15H29OH + 22 O2 = 15 CO2 + 15 H2O
As + NaOCl + NaOH = Na3AsO3 + NaCl + H2O =>
2 As + 3 NaOCl + 6 NaOH = 2 Na3AsO3 + 3 NaCl + 3 H2O
Na2CO3 + FeSO4 + H2O = Fe(OH)3 + Na2SO4 + CO2 + H2S =>
7 Na2CO3 + 8 FeSO4 + 13 H2O = 8 Fe(OH)3 + 7 Na2SO4 + 7 CO2 + H2S
C4H7COOH + NaOH = C4H9 + Na2CO3 + H2O =>
25 C4H7COOH + 58 NaOH = 24 C4H9 + 29 Na2CO3 + 21 H2O
Pb2 + (PO4)3 = Pb3(PO4)2 =>
9 Pb2 + 4(PO4)3 = 6 Pb3(PO4)2
KHSO4 + H2O = KOH + H2SO4 =>
KHSO4 + H2O = KOH + H2SO4
C2H6 + O = CO + H2O =>
C2H6 + 5 O = 2 CO + 3 H2O
Ni(NO2)2 = NiO + NO + O2 =>
2 Ni(NO2)2 = 2 NiO + 4 NO + O2
K2Cr2O7 + HCl = KCl + Cr2O3 + H2O + Cl2 =>
K2Cr2O7 + 8 HCl = 2 KCl + Cr2O3 + 4 H2O + 3 Cl2
C10H18O + Na2Cr2O7 + H2SO4 = C10H16O + H2O + Na2SO4 + Cr2(SO4)3 =>
3 C10H18O + Na2Cr2O7 + 4 H2SO4 = 3 C10H16O + 7 H2O + Na2SO4 + Cr2(SO4)3
CH2CH2 + O2 = CH3CHO =>
2 CH2CH2 + O2 = 2 CH3CHO
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