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4 P + 3 O2 = P4O6
H3C6H5O7 + O2 = H2O + CO2 =>
2 H3C6H5O7 + 9 O2 = 8 H2O + 12 CO2
Hg2Cl2 = Cl2 + Hg =>
Hg2Cl2 = Cl2 + 2 Hg
NaClO3 + NaI + H2O = NaCl + I + NaOH =>
NaClO3 + 6 NaI + 3 H2O = NaCl + 6 I + 6 NaOH
Mg + I3{-} = Mg{2+} + I{-} =>
Mg + I3{-} = Mg{2+} + 3 I{-}
K3PO4 + AgNO3 = Ag3PO4 + KNO3 =>
K3PO4 + 3 AgNO3 = Ag3PO4 + 3 KNO3
Rb + S = Rb2S3 =>
2 Rb + 3 S = Rb2S3
ZnS + HCl + As2Zn3 = As2S3 + ZnCl2 + H2 =>
3 ZnS + 12 HCl + As2Zn3 = As2S3 + 6 ZnCl2 + 6 H2
S{-2} + I2 = I{-} + S =>
S{-2} + I2 = 2 I{-} + S
Pb(HCO3)2 + Ca(OH)2 = Pb(OH)2 + CaCO3 + H2O =>
Pb(HCO3)2 + 2 Ca(OH)2 = Pb(OH)2 + 2 CaCO3 + 2 H2O
Al + KOH + H2O = KAl(OH)4 + H2 =>
2 Al + 2 KOH + 6 H2O = 2 KAl(OH)4 + 3 H2
C25H52 + O2 = CO2 + H2O =>
C25H52 + 38 O2 = 25 CO2 + 26 H2O
C + H2 + O2 = CH3COOH =>
2 C + 2 H2 + O2 = CH3COOH
Zn + S = ZnS3 =>
Zn + 3 S = ZnS3
FeCl3 + K4[Fe(Cn)6] = KFe[Fe(Cn)6] + KCl =>
FeCl3 + K4[Fe(Cn)6] = KFe[Fe(Cn)6] + 3 KCl
Mg(s) + HCI(aq) = MgCI(aq) + H2(g) =>
2 Mg(s) + 2 HCI(aq) = 2 MgCI(aq) + H2(g)
PbO2 + NaF + H2SO4 = F2 + PbSO4 + H2O + Na2SO4 =>
PbO2 + 2 NaF + 2 H2SO4 = F2 + PbSO4 + 2 H2O + Na2SO4
NiCl2*H2O = NiCl2 + H2O =>
NiCl2*H2O = NiCl2 + H2O
Cr2O7{-2} + H{+} + S2O3{-2} = S4O6{-2} + Cr{3+} + H2O =>
Cr2O7{-2} + 14 H{+} + 6 S2O3{-2} = 3 S4O6{-2} + 2 Cr{3+} + 7 H2O
SO4 = SO2 + O2 =>
SO4 = SO2 + O2
Ni(OH)2 + KOH = K2[Ni(OH)4] =>
Ni(OH)2 + 2 KOH = K2[Ni(OH)4]
POCl3(s) + H2O(l) = H3PO4(aq) + HCl(aq) =>
POCl3(s) + 3 H2O(l) = H3PO4(aq) + 3 HCl(aq)
Na + S8 = Na2S =>
16 Na + S8 = 8 Na2S
SbCl3 + Zn + HCl = SbH3 + ZnCl2 =>
SbCl3 + 3 Zn + 3 HCl = SbH3 + 3 ZnCl2
Sn + Fe(NO3)2 = Sn(NO3)2 + Fe =>
Sn + Fe(NO3)2 = Sn(NO3)2 + Fe
CaO + C = CaC2 + CO2 =>
2 CaO + 5 C = 2 CaC2 + CO2
Ni(NO3)2 + Fe = Ni + Fe(NO3)2 =>
Ni(NO3)2 + Fe = Ni + Fe(NO3)2
AlCl3 + H2O = Al(OH)3 + HCl =>
AlCl3 + 3 H2O = Al(OH)3 + 3 HCl
CoCl2(aq) + Pb(NO3)2(aq) = Co(NO3)2(aq) + PbCl2(s) =>
CoCl2(aq) + Pb(NO3)2(aq) = Co(NO3)2(aq) + PbCl2(s)
H2S + NH4OH = (NH4)2S + H2O =>
H2S + 2 NH4OH = (NH4)2S + 2 H2O
NaHCO3 = Na2CO3 + CO2 + H2O =>
2 NaHCO3 = Na2CO3 + CO2 + H2O
Ce(IO3)4 + H2C2O4 = Ce2(C2O4)3 + I2 + CO2 + H2O =>
2 Ce(IO3)4 + 24 H2C2O4 = Ce2(C2O4)3 + 4 I2 + 42 CO2 + 24 H2O
CuSO4 + K3PO4 = CuPO4 + K3SO4 =>
CuSO4 + K3PO4 = CuPO4 + K3SO4
S5O6{2-} + Cl2 + H2O = SO4{2-} + Cl{-} + H3O{+} =>
S5O6{2-} + 10 Cl2 + 42 H2O = 5 SO4{2-} + 20 Cl{-} + 28 H3O{+}
NaClO3 + NaI + H2O = NaCl + I + NaOH =>
NaClO3 + 6 NaI + 3 H2O = NaCl + 6 I + 6 NaOH
Cr + Fe2{+} = Cr3{+} + Fe =>
3 Cr + Fe2{+} = Cr3{+} + 2 Fe
K + O3 = KO2 =>
3 K + 2 O3 = 3 KO2
CH3CH(OH)CH3 + KMnO4 + HNO3 = Mn(NO3)2 + KNO3 + CH3CH3CO + H2O =>
5 CH3CH(OH)CH3 + 2 KMnO4 + 6 HNO3 = 2 Mn(NO3)2 + 2 KNO3 + 5 CH3CH3CO + 8 H2O
Na(OH)2 + HCl = H2O + NaCl2 =>
Na(OH)2 + 2 HCl = 2 H2O + NaCl2
Pb(NO3)2 + FeCl3 = PbCl2 + Fe(NO3)3 =>
3 Pb(NO3)2 + 2 FeCl3 = 3 PbCl2 + 2 Fe(NO3)3
HBr + Ba(OH)2 = BaBrOH + H2O =>
HBr + Ba(OH)2 = BaBrOH + H2O
MnO4{-}(aq) + CH3COH(aq) + H{+}(aq) = Mn{2+}(aq) + CH3CO2H(aq) + H2O(l) =>
2 MnO4{-}(aq) + 5 CH3COH(aq) + 6 H{+}(aq) = 2 Mn{2+}(aq) + 5 CH3CO2H(aq) + 3 H2O(l)
H2C2O4 + AlPO4 = H3PO4 + Al2(C2O4)3 =>
3 H2C2O4 + 2 AlPO4 = 2 H3PO4 + Al2(C2O4)3
Ag + HBr = AgH2 + Br90 =>
45 Ag + 90 HBr = 45 AgH2 + Br90
Br2 + HClO3 + H2O = HBrO2 + HCl =>
Br2 + HClO3 + H2O = 2 HBrO2 + HCl
C2H5O2N + O2 = CO2 + H2O + N2 =>
4 C2H5O2N + 9 O2 = 8 CO2 + 10 H2O + 2 N2
Cu + {+} = Cu{+2} =>
Cu + 2{+} = Cu{+2}
Al + KOH + H2O = K3[Al(OH)6] + H2 =>
2 Al + 6 KOH + 6 H2O = 2 K3[Al(OH)6] + 3 H2
I3{-} + C6H8O6 = I{-} + C6H6O6 + H{+} =>
I3{-} + C6H8O6 = 3 I{-} + C6H6O6 + 2 H{+}
Ca(HCO3)2 = CaO(s) + H2O(l) + CO2(g) =>
Ca(HCO3)2 = CaO(s) + H2O(l) + 2 CO2(g)
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