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2 PbO + C = 2 Pb + CO2
Al + O2 = Al2O3 =>
4 Al + 3 O2 = 2 Al2O3
C9H7N + H2O = C9H8N + OH =>
C9H7N + H2O = C9H8N + OH
H2S + SO2 = S + H2O =>
2 H2S + SO2 = 3 S + 2 H2O
CuO + Au = Cu + AuO =>
CuO + Au = Cu + AuO
CuCl2 + (NH4)3(PO4) = Cu3(PO4)2 + (NH4)Cl =>
3 CuCl2 + 2(NH4)3(PO4) = Cu3(PO4)2 + 6(NH4)Cl
C4H6O3 + H2O = C2H4O2 =>
C4H6O3 + H2O = 2 C2H4O2
FeO + O2 = Fe2O3 =>
4 FeO + O2 = 2 Fe2O3
Pb(NO3)2 + NaI = PbI2 + NaNO3 =>
Pb(NO3)2 + 2 NaI = PbI2 + 2 NaNO3
Al + O2 = Al2O3 =>
4 Al + 3 O2 = 2 Al2O3
FeO + HClO4 = Fe(ClO4)2 + H2O =>
FeO + 2 HClO4 = Fe(ClO4)2 + H2O
Na + Zn(No3)2 = NaNo3 + Zn =>
2 Na + Zn(No3)2 = 2 NaNo3 + Zn
CO2 + S3 = CS2 + SO2 =>
CO2 + S3 = CS2 + SO2
HClO4 + RbOH = RbClO4 + H2O =>
HClO4 + RbOH = RbClO4 + H2O
S2O8{2-} + Cr{3+} + H2O = SO4{2-} + Cr2O7{2-} + H{+] =>
3 S2O8{2-} + 2 Cr{3+} + 7 H2O = 6 SO4{2-} + Cr2O7{2-} + 14 H{+]
MnC2O4 = MnCO3 + CO =>
MnC2O4 = MnCO3 + CO
PbO + C = Pb + CO =>
PbO + C = Pb + CO
Cr2(SO4)3 + (NH4)2SO4 + H2O = NH4[Cr(SO4)2](H2O)12 =>
Cr2(SO4)3 + (NH4)2SO4 + 24 H2O = 2 NH4[Cr(SO4)2](H2O)12
CH2CH2 + Cl2 = CH2CH2Cl2 =>
CH2CH2 + Cl2 = CH2CH2Cl2
S8 + O2 = SO3 =>
S8 + 12 O2 = 8 SO3
AgBr + KI = AgI + KBr =>
AgBr + KI = AgI + KBr
Cl2 + BeS = BeCl2 + S =>
Cl2 + BeS = BeCl2 + S
NH4Cl + NO2 = N2 + H2O + HCl =>
8 NH4Cl + 6 NO2 = 7 N2 + 12 H2O + 8 HCl
AlCl3 + AgCH3COO = AgCl + Al(CH3COO)3 =>
AlCl3 + 3 AgCH3COO = 3 AgCl + Al(CH3COO)3
CS2 + O2 = SO2 + C2 =>
2 CS2 + 4 O2 = 4 SO2 + C2
Zn(OH)Cl2 + NaOH = (OH)2ClZn + NaCl =>
Zn(OH)Cl2 + NaOH = (OH)2ClZn + NaCl
Mg(OH)2 + H3PO4 = Mg3(PO4)2 + H2O =>
3 Mg(OH)2 + 2 H3PO4 = Mg3(PO4)2 + 6 H2O
Zn(s) + H2So4(aq) = ZnSo(aq) + H2(g) =>
4 Zn(s) + H2So4(aq) = 4 ZnSo(aq) + H2(g)
C2H7N + O2 = NO2 + H + CO2 =>
C2H7N + 3 O2 = NO2 + 7 H + 2 CO2
Sn(NO3)3 + Mg = Mg(NO3)2 + Sn =>
2 Sn(NO3)3 + 3 Mg = 3 Mg(NO3)2 + 2 Sn
K2O(s) + H2O = KOH =>
K2O(s) + H2O = 2 KOH
KOH + H3PO4 = K3PO4 + H2O =>
3 KOH + H3PO4 = K3PO4 + 3 H2O
K2MnO4(s) + CO2(g) + H2O(l) = KMnO4(s) + KHCO3(g) + MnO2(s) =>
3 K2MnO4(s) + 4 CO2(g) + 2 H2O(l) = 2 KMnO4(s) + 4 KHCO3(g) + MnO2(s)
Na3PO4 + KOH = NaOH + K3PO4 =>
Na3PO4 + 3 KOH = 3 NaOH + K3PO4
H + O = H2O =>
2 H + O = H2O
Au + Mg(NO3)2 = Mg + Au(NO3)2 =>
Au + Mg(NO3)2 = Mg + Au(NO3)2
Cu + Fe{3+} = Cu{2+} + Fe{2+} =>
Cu + 2 Fe{3+} = Cu{2+} + 2 Fe{2+}
Ca(OH)2 + H3PO4 = Ca3(PO4)2 + H2O =>
3 Ca(OH)2 + 2 H3PO4 = Ca3(PO4)2 + 6 H2O
KCl(aq) + Pb3(PO4)4(aq) = PbCl4(s) + K3PO4(aq) =>
12 KCl(aq) + Pb3(PO4)4(aq) = 3 PbCl4(s) + 4 K3PO4(aq)
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
(NH4)2SO4 + NaOH + Li + C10H15NO = Na2SO4 + LiNH2 + C10H15N + H2O =>
(NH4)2SO4 + 2 NaOH + 2 Li + C10H15NO = Na2SO4 + 2 LiNH2 + C10H15N + 3 H2O
Ca3P2 + H2SO4 = CaSO4 + PH3 =>
Ca3P2 + 3 H2SO4 = 3 CaSO4 + 2 PH3
NaAlO2 + SO3 = Al2(SO4)3 + Na2O =>
2 NaAlO2 + 3 SO3 = Al2(SO4)3 + Na2O
H2O + Cl2 = O3 + HCl =>
3 H2O + 3 Cl2 = O3 + 6 HCl
MnS2 + H2O = Mn{4+} + H{+} + SO4{2-} + e =>
MnS2 + 8 H2O = Mn{4+} + 16 H{+} + 2 SO4{2-} + 16e
LiCoO + WC + O2 = Li2C2 + WO2 + CoO =>
2 LiCoO + 2 WC + 2 O2 = Li2C2 + 2 WO2 + 2 CoO
FeS + HNO3 = Fe(NO3)2 + H2S =>
FeS + 2 HNO3 = Fe(NO3)2 + H2S
PtO2H2O = Pt + O2 + H2O =>
PtO2H2O = Pt + O2 + H2O
BaCl2 + H2O3 = HCl + BaO3 =>
BaCl2 + H2O3 = 2 HCl + BaO3
Fe3C + H2SO4 = Fe2(SO4)3 + SO2 + CO2 + H2O =>
2 Fe3C + 22 H2SO4 = 3 Fe2(SO4)3 + 13 SO2 + 2 CO2 + 22 H2O
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