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3 Fe + 4 H2O = Fe3O4 + 4 H2
S8 + F2 = SF6 =>
S8 + 24 F2 = 8 SF6
Cr2O7{2-} + H{+} + Sn{2+} = Sn{4+} + Cr{3+} + H2O =>
Cr2O7{2-} + 14 H{+} + 3 Sn{2+} = 3 Sn{4+} + 2 Cr{3+} + 7 H2O
CO(OH)2 + H2O2 = CO(OH)3 =>
2 CO(OH)2 + H2O2 = 2 CO(OH)3
Al(NO3)3 = AlO + O + NO2 =>
Al(NO3)3 = AlO + 2 O + 3 NO2
ZnSO4 + (NH4)2HPO4 = NH4ZnPO4 + NH4HSO4 =>
ZnSO4 + (NH4)2HPO4 = NH4ZnPO4 + NH4HSO4
CuO + TiO2 = Cu4Ti3 + O =>
4 CuO + 3 TiO2 = Cu4Ti3 + 10 O
KMnO4 + KBr + CH3COOH = (CH3COO)Mn + Br2 + CH2COOK + H2O =>
4 KMnO4 + 10 KBr + 18 CH3COOH = 4(CH3COO)Mn + 5 Br2 + 14 CH2COOK + 16 H2O
SO2 + ClO2 = O2 + SCl =>
SO2 + ClO2 = 2 O2 + SCl
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
Hg2(NO3)2 + KI = HgI + KNO3 =>
Hg2(NO3)2 + 2 KI = 2 HgI + 2 KNO3
NaBr + (NH4)3PO4 = NH4Br + Na3PO4 =>
3 NaBr + (NH4)3PO4 = 3 NH4Br + Na3PO4
BaCO3(s) = BaO(s) + CO2(g) =>
BaCO3(s) = BaO(s) + CO2(g)
KMnO4 + H2SO4 + Na2C2O4 = MnSO4 + CO2 + H2O + Na2SO4 + K2SO4 =>
2 KMnO4 + 8 H2SO4 + 5 Na2C2O4 = 2 MnSO4 + 10 CO2 + 8 H2O + 5 Na2SO4 + K2SO4
Pb + HgBr2 = PbBr2 + Hg =>
Pb + HgBr2 = PbBr2 + Hg
H2SO4 + KClO = K2SO4 + O2 + Cl2 + H2O =>
2 H2SO4 + 4 KClO = 2 K2SO4 + O2 + 2 Cl2 + 2 H2O
NaC2H3O2 + H2O = NaOH + HC3H3O2 =>
3 NaC2H3O2 + H2O = 3 NaOH + 2 HC3H3O2
X3YZ + CDE = X2D + XC + YE + Z2 =>
2 X3YZ + 2 CDE = 2 X2D + 2 XC + 2 YE + Z2
Na(HCO3)2 + CH3COOH = HCO3 + NaCH3COOH =>
Na(HCO3)2 + CH3COOH = 2 HCO3 + NaCH3COOH
SO2 + K3[Cr(OH)6] = KHSO3 + Cr(OH)3 =>
3 SO2 + K3[Cr(OH)6] = 3 KHSO3 + Cr(OH)3
C4H6O5 + H2O = CO2 + CH3OH =>
C4H6O5 + H2O = 2 CO2 + 2 CH3OH
MgO + Pb(NO3)2 = Mg(NO3)2 + PbO =>
MgO + Pb(NO3)2 = Mg(NO3)2 + PbO
Cu(s) + AgNO3(aq) = Ag(aq) + Cu(NO3)2(aq) =>
Cu(s) + 2 AgNO3(aq) = 2 Ag(aq) + Cu(NO3)2(aq)
CO(NH2)2 + (NH4)2SO4 = CO(NH4)2 + (NH2)2SO4 =>
CO(NH2)2 + (NH4)2SO4 = CO(NH4)2 + (NH2)2SO4
NH4 + H2O = NH4OH + H =>
NH4 + H2O = NH4OH + H
CrCl2 + NaCl + Cl2 + H2O = Na2CrO4 + HCl =>
CrCl2 + 2 NaCl + 2 Cl2 + 4 H2O = Na2CrO4 + 8 HCl
P4 + S = PS =>
P4 + 4 S = 4 PS
Na2SO4 + KIO3 + H2SO4 = NaSO4 + I2 + K2SO4 + H2O =>
5 Na2SO4 + 2 KIO3 + 6 H2SO4 = 10 NaSO4 + I2 + K2SO4 + 6 H2O
SnCl2 + NaClO + NaOH = SnO2 + NaCl + H2O =>
SnCl2 + NaClO + 2 NaOH = SnO2 + 3 NaCl + H2O
CuSO4 + KOH + KIO4 + K2S2O8 = K4H4[O2Cu(IO6)2] + K2SO4 + H2O =>
CuSO4 + 8 KOH + 2 KIO4 + 2 K2S2O8 = K4H4[O2Cu(IO6)2] + 5 K2SO4 + 2 H2O
HCl + CU = CUCl2 + H2 =>
2 HCl + CU = CUCl2 + H2
H2SO3 + CaCO3 = CaSO3 + Ca(HCO3)2 =>
H2SO3 + 2 CaCO3 = CaSO3 + Ca(HCO3)2
KMnO4 + HNO2 + H2SO4 = K2SO4 + MnSO5 + HNO3 + H2O =>
2 KMnO4 + 3 HNO2 + 3 H2SO4 = K2SO4 + 2 MnSO5 + 3 HNO3 + 3 H2O
Mg(NO3)2(H2O)6 + Co(NO3)2(H2O)6 + Fe(NO3)3(H2O)9 + C6H8O7 = Mg8Co2Fe20O40 + CO2 + N2 + H2O =>
72 Mg(NO3)2(H2O)6 + 18 Co(NO3)2(H2O)6 + 180 Fe(NO3)3(H2O)9 + 200 C6H8O7 = 9 Mg8Co2Fe20O40 + 1200 CO2 + 360 N2 + 2960 H2O
NO2{-} + H2O = NO3{-} + H{+} + {-} =>
NO2{-} + H2O = NO3{-} + 2 H{+} + 2e
Li3N + NH3 = Li2NH =>
2 Li3N + NH3 = 3 Li2NH
Pt(OH)4 + NaOH = Na2[Pt(OH)6] =>
Pt(OH)4 + 2 NaOH = Na2[Pt(OH)6]
PbI + Na = NaI + Pb =>
PbI + Na = NaI + Pb
Al2(SO4)3 + NaCH3COO = Al(CH3COO)3 + Na2SO4 =>
Al2(SO4)3 + 6 NaCH3COO = 2 Al(CH3COO)3 + 3 Na2SO4
K(NO)3(s) + S(s) + C(s) = CO2(g) + KS(s) + N2(g) =>
2 K(NO)3(s) + 2 S(s) + 3 C(s) = 3 CO2(g) + 2 KS(s) + 3 N2(g)
CrPO4 + BaSO4 = Ba3[PO4]2 + Cr2[SO4]3 =>
2 CrPO4 + 3 BaSO4 = Ba3[PO4]2 + Cr2[SO4]3
Pb(NO3)2 + KOH = PbK + (NO3)2OH =>
Pb(NO3)2 + KOH = PbK + (NO3)2OH
H2CO + O2 = CO2 + HOH =>
H2CO + O2 = CO2 + HOH
C8H5KO4 + NaOH = NaKC8H4O4 + H2O =>
C8H5KO4 + NaOH = NaKC8H4O4 + H2O
K2[Sn(OH)4] + PbO2 + KOH + H2O = K3[Sn(OH)6] + K2[Pb(OH)4] =>
2 K2[Sn(OH)4] + PbO2 + 4 KOH + 2 H2O = 2 K3[Sn(OH)6] + K2[Pb(OH)4]
NO(g) + N2O5(g) = NO2(g) =>
NO(g) + N2O5(g) = 3 NO2(g)
AsO3 + C = As + CO2 =>
2 AsO3 + 3 C = 2 As + 3 CO2
NaHSO4 + KOH = NaKSO4 + H2O =>
NaHSO4 + KOH = NaKSO4 + H2O
Cr + HCl = Cr3Cl + H2 =>
6 Cr + 2 HCl = 2 Cr3Cl + H2
N2 + O2 = N2O =>
2 N2 + O2 = 2 N2O
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