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4 K + O2 = 2 K2O
Fe(OH)3 = (Fe)2(O)3 + (H)2(O) =>
2 Fe(OH)3 = (Fe)2(O)3 + 3(H)2(O)
MnO4{-} + NO2{-} + H2O = MnO2 + NO3{-} + OH{-} =>
2 MnO4{-} + 3 NO2{-} + H2O = 2 MnO2 + 3 NO3{-} + 2 OH{-}
H2CO3 + Na = Na2CO3 + H2 =>
H2CO3 + 2 Na = Na2CO3 + H2
Ca3(PO4)2 + H3PO4 = Ca(H2PO4)2 =>
Ca3(PO4)2 + 4 H3PO4 = 3 Ca(H2PO4)2
Na(s) + H2O(l) = NaOH(aq) + H2(g) =>
2 Na(s) + 2 H2O(l) = 2 NaOH(aq) + H2(g)
CrCl3 + AgNO3 = Cr(NO3)3 + AgCl =>
CrCl3 + 3 AgNO3 = Cr(NO3)3 + 3 AgCl
Al + O2 = Al2O3 =>
4 Al + 3 O2 = 2 Al2O3
Fe(OH)3 = (Fe)2(O)3 + (H)2(O) =>
2 Fe(OH)3 = (Fe)2(O)3 + 3(H)2(O)
CH4(g) + H2O(s) = CO(g) + H2(g) =>
CH4(g) + H2O(s) = CO(g) + 3 H2(g)
AgNO3 + BaCl2 = AgCl + Ba(NO3)2 =>
2 AgNO3 + BaCl2 = 2 AgCl + Ba(NO3)2
C2H4F2 + O2 = CO2 + H2O + HF =>
2 C2H4F2 + 5 O2 = 4 CO2 + 2 H2O + 4 HF
CH + CaOH = CHCaOH =>
CH + CaOH = CHCaOH
CaCl2 + Mg(NO3)2 = Ca(NO3)2 + MgCl2 =>
CaCl2 + Mg(NO3)2 = Ca(NO3)2 + MgCl2
Fe(OH)3 = (Fe)2(O)3 + (H)2(O) =>
2 Fe(OH)3 = (Fe)2(O)3 + 3(H)2(O)
SiCl4 + H2O = SiO2 + HCl =>
SiCl4 + 2 H2O = SiO2 + 4 HCl
HC2H3O2 + NaHCO3 = CO2 + Na2C2H3O2 + H2O =>
9 HC2H3O2 + 16 NaHCO3 = 18 CO2 + 8 Na2C2H3O2 + 14 H2O
C2H4O + O2 = CO2 + H2O =>
2 C2H4O + 5 O2 = 4 CO2 + 4 H2O
Al3 + OH = Al(OH)3 =>
Al3 + 9 OH = 3 Al(OH)3
C9H11NO2 + NaOH = C9H11Na + NO2OH =>
C9H11NO2 + NaOH = C9H11Na + NO2OH
Al + H2SO4 = Al2(SO4)3 + H2 =>
2 Al + 3 H2SO4 = Al2(SO4)3 + 3 H2
Cl2 + HClO3 = ClO2 + HCl =>
3 Cl2 + 4 HClO3 = 6 ClO2 + 4 HCl
Mg(s) + FeCl3 = MgCl2 + Fe =>
3 Mg(s) + 2 FeCl3 = 3 MgCl2 + 2 Fe
B2O3 + H2O = H3BO3 =>
B2O3 + 3 H2O = 2 H3BO3
Fe(OH)3 = (Fe)2(O)3 + (H)2(O) =>
2 Fe(OH)3 = (Fe)2(O)3 + 3(H)2(O)
C3H8 + O2 = CO2 + H2O =>
C3H8 + 5 O2 = 3 CO2 + 4 H2O
Si + HNO3(conc) = H2SiO3 + NO2 + H2O =>
Si + 4 HNO3(conc) = H2SiO3 + 4 NO2 + H2O
Fe(OH)3 = (Fe)2(O)3 + (H)2(O) =>
2 Fe(OH)3 = (Fe)2(O)3 + 3(H)2(O)
AgNO3(aq) + H2O(l) = Ag2O(s) + HNO3(oi) =>
2 AgNO3(aq) + H2O(l) = Ag2O(s) + 2 HNO3(oi)
Po + F2 = PoF2 =>
Po + F2 = PoF2
C2H6(g) + O2(g) = CO2(g) + H2O9(g) =>
2 C2H6(g) + 31 O2(g) = 4 CO2(g) + 6 H2O9(g)
Cu(s) + HNO3(aq) = Cu(NO3)2(aq) + NO2(g) + H2O(l) =>
Cu(s) + 4 HNO3(aq) = Cu(NO3)2(aq) + 2 NO2(g) + 2 H2O(l)
KHCO3 + HClO4 = KClO4 + H2O + CO2 =>
KHCO3 + HClO4 = KClO4 + H2O + CO2
Ag + HCl = AgCl + H2 =>
2 Ag + 2 HCl = 2 AgCl + H2
AsI3 = As + I2 =>
2 AsI3 = 2 As + 3 I2
CH3CH3 + HBr = H2 + CH3CH2Br =>
CH3CH3 + HBr = H2 + CH3CH2Br
AsH3 + NaClO + NaOH = Na3AsO4 + NaCl + H2O =>
AsH3 + 4 NaClO + 3 NaOH = Na3AsO4 + 4 NaCl + 3 H2O
As2O3 + C = As + CO3 =>
As2O3 + C = 2 As + CO3
Fe(OH)3 = (Fe)2(O)3 + (H)2(O) =>
2 Fe(OH)3 = (Fe)2(O)3 + 3(H)2(O)
Na3(PO4) + (NH4)Cl = NaCl + (NH4)3(PO4) =>
Na3(PO4) + 3(NH4)Cl = 3 NaCl + (NH4)3(PO4)
C2O4{2-} + BrO3{-} + H3O{+} = CO2 + Br{-} + H2O =>
3 C2O4{2-} + BrO3{-} + 6 H3O{+} = 6 CO2 + Br{-} + 9 H2O
Fe2O3 = Fe2 + O3 =>
Fe2O3 = Fe2 + O3
Au3N + Mg = Mg3N2 + Au =>
2 Au3N + 3 Mg = Mg3N2 + 6 Au
Al2O3 + H2O = Al(OH)3 =>
Al2O3 + 3 H2O = 2 Al(OH)3
KMnO4 + HNO2 = KNO3 + Mn(NO3)2 + KNO2 + H2O =>
2 KMnO4 + 6 HNO2 = KNO3 + 2 Mn(NO3)2 + KNO2 + 3 H2O
AgNo3(aq) + NaI(aq) = AgI(s) + NaNo3(aq) =>
AgNo3(aq) + NaI(aq) = AgI(s) + NaNo3(aq)
KMnO4 + HCl = KCl + MnCl2 + H2O + Cl2 =>
2 KMnO4 + 16 HCl = 2 KCl + 2 MnCl2 + 8 H2O + 5 Cl2
C5H12 + O2 = CO2 + H2O =>
C5H12 + 8 O2 = 5 CO2 + 6 H2O
SOBr2 + H2O = SO2 + HBr =>
SOBr2 + H2O = SO2 + 2 HBr
CuFeS2 + SiO2 + O2 = CuS + FeSiO3 + SO2 =>
2 CuFeS2 + 2 SiO2 + 3 O2 = 2 CuS + 2 FeSiO3 + 2 SO2
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