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4 B + 3 O2 = 2 B2O3
K2CO3 + H2SO4 = K2SO4 + CO2 + H2O =>
K2CO3 + H2SO4 = K2SO4 + CO2 + H2O
HCl + FeO = FeCl2 + H2O =>
2 HCl + FeO = FeCl2 + H2O
Ca(C2H3O2)2 + Li = LiC2H3O2 + Ca =>
Ca(C2H3O2)2 + 2 Li = 2 LiC2H3O2 + Ca
CaCO3 + NaBr = CaBr2 + Na2CO3 =>
CaCO3 + 2 NaBr = CaBr2 + Na2CO3
I2 + NaHSO3 + H2O = NaHSO4 + HI =>
I2 + NaHSO3 + H2O = NaHSO4 + 2 HI
Cu(s)HgCl2(aq) = HgCuCl2(aq) =>
Cu(s)HgCl2(aq) = HgCuCl2(aq)
CrCl3 + H2O = Cr(OH)3 + H2 + Cl3 =>
2 CrCl3 + 6 H2O = 2 Cr(OH)3 + 3 H2 + 2 Cl3
H2P2O7{2-} = P2O5 + O2 + H2O + e =>
2 H2P2O7{2-} = 2 P2O5 + O2 + 2 H2O + 4e
S2(CO3)3 + Pb3(PO4)4 = S3(PO4)3 + Pb2(CO3)4 =>
12 S2(CO3)3 + 6 Pb3(PO4)4 = 8 S3(PO4)3 + 9 Pb2(CO3)4
NaNO3 + KC2H3O2 = KNO3 + NaC2H3O2 =>
NaNO3 + KC2H3O2 = KNO3 + NaC2H3O2
Na + HCl = H2 + NaCl =>
2 Na + 2 HCl = H2 + 2 NaCl
CaCO3 + NaBr = CaBr2 + Na2CO3 =>
CaCO3 + 2 NaBr = CaBr2 + Na2CO3
C5H8 + Cl2 = C5H8Cl4 =>
C5H8 + 2 Cl2 = C5H8Cl4
Pb3 + Na + C2H5Cl = Pb(C2H5)4 + NaCl =>
Pb3 + 12 Na + 12 C2H5Cl = 3 Pb(C2H5)4 + 12 NaCl
SO2 + O2 = SO3 =>
2 SO2 + O2 = 2 SO3
Na2CO3(aq) + HCl(aq) = CO2(aq) + H2O(l) + NaCl(aq) =>
Na2CO3(aq) + 2 HCl(aq) = CO2(aq) + H2O(l) + 2 NaCl(aq)
Na2SO3 + HClO4 = NaClO4 + H2O + SO2 =>
Na2SO3 + 2 HClO4 = 2 NaClO4 + H2O + SO2
Cl + NaOH = NaCl + H2O + NaClO2 =>
4 Cl + 4 NaOH = 3 NaCl + 2 H2O + NaClO2
Al(s) + KOH(aq) + H2O = K{+}(aq) + Al(OH)4{-}(aq) + H2(g) =>
2 Al(s) + 2 KOH(aq) + 6 H2O = 2 K{+}(aq) + 2 Al(OH)4{-}(aq) + 3 H2(g)
Ca + HCI = CaCI + H =>
Ca + HCI = CaCI + H
C2H9NaO5(s) + H2O(l) = C2H9NaO5*H2O =>
C2H9NaO5(s) + H2O(l) = C2H9NaO5*H2O
Al(s) + CuSO4(aq) = Al2(SO4)3(aq) + Cu4(aq) =>
8 Al(s) + 12 CuSO4(aq) = 4 Al2(SO4)3(aq) + 3 Cu4(aq)
Na + NaNO3 = Na2O + N2 =>
10 Na + 2 NaNO3 = 6 Na2O + N2
H{+} + Sn = Sn2{+} + H2 =>
2 H{+} + 4 Sn = 2 Sn2{+} + H2
FeSO4*7H2O + CuSO4*5H2O = CuFe(SO4)2 + H2O =>
FeSO4*7H2O + CuSO4*5H2O = CuFe(SO4)2 + 12 H2O
Cu(CH3CO2)2 + O2 = CO2 + H2O + CuO =>
Cu(CH3CO2)2 + 4 O2 = 4 CO2 + 3 H2O + CuO
NaHCO3 = Na2CO3 + H2O + CO2 =>
2 NaHCO3 = Na2CO3 + H2O + CO2
AgNO3 + KBr = AgBr + KNO3 =>
AgNO3 + KBr = AgBr + KNO3
KOH + HNO3 = KNO3 + HOH =>
KOH + HNO3 = KNO3 + HOH
C3H89 + O2 = CO2 + H2O =>
4 C3H89 + 101 O2 = 12 CO2 + 178 H2O
VCl2 + Cl2 = VCl5 =>
2 VCl2 + 3 Cl2 = 2 VCl5
Cu + HNO3 = Cu(NO3)2 + NO + H2O =>
3 Cu + 8 HNO3 = 3 Cu(NO3)2 + 2 NO + 4 H2O
H2SO4 + HI = H2S + I2 + H2O =>
H2SO4 + 8 HI = H2S + 4 I2 + 4 H2O
Zn + NO3 + H2O = NH3 + Zn(OH) =>
9 Zn + NO3 + 6 H2O = NH3 + 9 Zn(OH)
NaI + K2Cr2O7 = Na2Cr2O7 + KI =>
2 NaI + K2Cr2O7 = Na2Cr2O7 + 2 KI
CaCO3 + SrCO3 + RuO2 + Cr2O3 + O2 = Ca50Sr50Ru95Cr5O300 + CO2 =>
200 CaCO3 + 200 SrCO3 + 380 RuO2 + 10 Cr2O3 + 5 O2 = 4 Ca50Sr50Ru95Cr5O300 + 400 CO2
Ca + Al(OH)3 = Ca(OH)2 + Al =>
3 Ca + 2 Al(OH)3 = 3 Ca(OH)2 + 2 Al
Pb(OH)2 + HCl = H2O + PbCl2 =>
Pb(OH)2 + 2 HCl = 2 H2O + PbCl2
C4H10 + O2 = CO2 + H2O =>
2 C4H10 + 13 O2 = 8 CO2 + 10 H2O
Li(s) + H2 = LiH =>
2 Li(s) + H2 = 2 LiH
H2C6H6O6 + NaOH = Na2C6H6O6 + H2O =>
H2C6H6O6 + 2 NaOH = Na2C6H6O6 + 2 H2O
C4H8N2SO + O2 = H2O + CO2 + N2S =>
2 C4H8N2SO + 11 O2 = 8 H2O + 8 CO2 + 2 N2S
Ca + HCI = CaHCI =>
Ca + HCI = CaHCI
ZnCl2 + Ag = Zn2 + AgCl2 =>
2 ZnCl2 + 2 Ag = Zn2 + 2 AgCl2
NiCuSO4 = NiSO4Cu =>
NiCuSO4 = NiSO4Cu
K2CO3 + HNO3 = KNO2 + O2 + CO2 + H2O =>
K2CO3 + 2 HNO3 = 2 KNO2 + O2 + CO2 + H2O
C9H17 + O2 = CO2 + H2O =>
4 C9H17 + 53 O2 = 36 CO2 + 34 H2O
NiCuCl2 = NiCl2Cu =>
NiCuCl2 = NiCl2Cu
AgI(s) + Na2S(s) = Ag2S(s) + NaI(s) =>
2 AgI(s) + Na2S(s) = Ag2S(s) + 2 NaI(s)
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