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2 H2 + O2 = 2 H2O
NaI + Br2 = I1 + NaBr =>
2 NaI + Br2 = 2 I1 + 2 NaBr
C2H5OH + NaCO3 = C2H5ONa + H2O + CO2 =>
13 C2H5OH + 12 NaCO3 = 12 C2H5ONa + 9 H2O + 14 CO2
CrCl3 + H2O2 + KOH = K2Cr2O7 + KCl + H2O =>
2 CrCl3 + 3 H2O2 + 8 KOH = K2Cr2O7 + 6 KCl + 7 H2O
Ag2O + H2O = Ag2OH + O2 =>
4 Ag2O + 2 H2O = 4 Ag2OH + O2
NaOHNa = Na2OH =>
NaOHNa = Na2OH
Se(s) + O2(g) = SeO2 =>
Se(s) + O2(g) = SeO2
CH2CHCH3 + H2O = CH2CHCOOH + H2 =>
CH2CHCH3 + 2 H2O = CH2CHCOOH + 3 H2
Cu + Fe(CN)6 = Cu2Fe(CN)6 =>
2 Cu + Fe(CN)6 = Cu2Fe(CN)6
NaOH + HClO3 = NaClO3H2O =>
NaOH + HClO3 = NaClO3H2O
Ni(NO3)2(aq)KI(aq) = NiI(aq)K(NO3)2(aq) =>
Ni(NO3)2(aq)KI(aq) = NiI(aq)K(NO3)2(aq)
Zn(s) + H3PO4(aq) = Zn3(PO4)2(aq) + H2(g) =>
3 Zn(s) + 2 H3PO4(aq) = Zn3(PO4)2(aq) + 3 H2(g)
CO2Ca(OH)2 = CaCO3 + H2O =>
CO2Ca(OH)2 = CaCO3 + H2O
Zn + H{3}C{6}H{5}O{7} = Zn{3}(H{3}C{6}H{5}O{7})2 + H{2} =>
Zn + 3 H{3}C{6}H{5}O{7} = Zn{3}(H{3}C{6}H{5}O{7})2 + 3 H{2}
H2CO3 + Cu = Cu(HCO3)2 + H2 =>
2 H2CO3 + Cu = Cu(HCO3)2 + H2
Cu + CO2 + H2O = CuCO3 + H2 =>
Cu + CO2 + H2O = CuCO3 + H2
Cu + HNO3 = Cu(NO302) + NO2 + H2O =>
Cu + 600 HNO3 = Cu(NO302) + 599 NO2 + 300 H2O
CuSO4 + K4P2O7 = Cu2P2O7 + K2SO4 =>
2 CuSO4 + K4P2O7 = Cu2P2O7 + 2 K2SO4
AgNO3 + Li = NO3Li + Ag =>
AgNO3 + Li = NO3Li + Ag
HCl + NH4 = H2 + NCl =>
2 HCl + 2 NH4 = 5 H2 + 2 NCl
C60(CH4)30(H2O)10(SiO2)5 + CaO2 = CO2 + H2O + CaSiO3 + CaO =>
C60(CH4)30(H2O)10(SiO2)5 + 240 CaO2 = 90 CO2 + 70 H2O + 5 CaSiO3 + 235 CaO
H2 + Cu2Cl = HCl + Cu =>
H2 + 2 Cu2Cl = 2 HCl + 4 Cu
Eu7000Ti1000P2004O16000 = Eu3P2O8 + Eu2TiO5 + EuTiO3 + Eu2O3 =>
Eu7000Ti1000P2004O16000 = 1002 Eu3P2O8 + 986 Eu2TiO5 + 14 EuTiO3 + 1004 Eu2O3
KCl + NaI = NaCl + KI =>
KCl + NaI = NaCl + KI
Fe + O2 + H2O = Fe(OH)3 =>
4 Fe + 3 O2 + 6 H2O = 4 Fe(OH)3
O = O2 =>
2 O = O2
C2H6(g) + O2(g) = CO2(g) + H2O(g) =>
2 C2H6(g) + 7 O2(g) = 4 CO2(g) + 6 H2O(g)
KOH + H3PO4 = H2O + K3(PO4) =>
3 KOH + H3PO4 = 3 H2O + K3(PO4)
Na + CH3COO = NaCH3COO =>
Na + CH3COO = NaCH3COO
KClO4 + P = KCl + P2O5 =>
5 KClO4 + 8 P = 5 KCl + 4 P2O5
BrO3{-} + NH4OH = Br{-} + NO2 + H2O =>
7 BrO3{-} + 6 NH4OH = 7 Br{-} + 6 NO2 + 15 H2O
Fe(s) + HNO3(aq) = Fe(NO3)3(aq) + NO + H2O =>
Fe(s) + 4 HNO3(aq) = Fe(NO3)3(aq) + NO + 2 H2O
LiCO3 + Fe(NO3)3 = Li(NO3)3 + FeCO3 =>
LiCO3 + Fe(NO3)3 = Li(NO3)3 + FeCO3
Ti + NaOH = Ti(OH)4 + Na =>
Ti + 4 NaOH = Ti(OH)4 + 4 Na
Fe3O4 + C = CO + Fe =>
Fe3O4 + 4 C = 4 CO + 3 Fe
HClO4 + Ba = Ba(ClO4)2 + H2 =>
2 HClO4 + Ba = Ba(ClO4)2 + H2
Na2SO4 + H2O2 = H2SO4 + Na2O2 =>
Na2SO4 + H2O2 = H2SO4 + Na2O2
P3C5 = P + C =>
P3C5 = 3 P + 5 C
NaHPO4 = HPO4 + Na =>
NaHPO4 = HPO4 + Na
CO3{2-} + H3O{+} = H2O + HCO3{-} =>
CO3{2-} + H3O{+} = H2O + HCO3{-}
KI + HCl + K2Cr2O7 = I2 + CrCl2 + KCl + H2O =>
8 KI + 14 HCl + K2Cr2O7 = 4 I2 + 2 CrCl2 + 10 KCl + 7 H2O
Cl + CaCO3 + CO2 = CaC2 + Cl2O =>
10 Cl + CaCO3 + CO2 = CaC2 + 5 Cl2O
[Ni(NH3)6](OH)2 + Na2S = NiS + NaOH + NH3 =>
[Ni(NH3)6](OH)2 + Na2S = NiS + 2 NaOH + 6 NH3
Se(s) + O2(g) = SeO2(g) =>
Se(s) + O2(g) = SeO2(g)
SrBr2 + K2SO4 = KBr + SrSO4 =>
SrBr2 + K2SO4 = 2 KBr + SrSO4
(NH4)2SO4(aq) + Cr(NO3)3(aq) = NH4NO3(aq) + Cr2(SO4)3(s) =>
3(NH4)2SO4(aq) + 2 Cr(NO3)3(aq) = 6 NH4NO3(aq) + Cr2(SO4)3(s)
B2O3(s) + C(s) + Cl2(g) = BCl3(l) + CO =>
B2O3(s) + 3 C(s) + 3 Cl2(g) = 2 BCl3(l) + 3 CO
Fe(NO3)3 + Pb = Fe(NO3)2 + Pb(NO3)2 =>
2 Fe(NO3)3 + Pb = 2 Fe(NO3)2 + Pb(NO3)2
H2AsO4 + Zn(OH)2 = Zn2(AsO4)2 + H2O =>
2 H2AsO4 + 2 Zn(OH)2 = Zn2(AsO4)2 + 4 H2O
Ti + NaOH = Ti(OH)4 + Na =>
Ti + 4 NaOH = Ti(OH)4 + 4 Na
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