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C2H4 + 3 O2 = 2 CO2 + 2 H2O
KOH + HC = KC + H2O =>
KOH + HC = KC + H2O
H2S + Co(OH)3 = H2(OH)3 + CoS =>
H2S + Co(OH)3 = H2(OH)3 + CoS
Be(OH)2 + AlF3 = BeF2 + Al(OH)3 =>
3 Be(OH)2 + 2 AlF3 = 3 BeF2 + 2 Al(OH)3
C + N2O = CO2 + N2 =>
C + 2 N2O = CO2 + 2 N2
HReO4 + Al(OH)3 = Al(ReO4)3 + H2O =>
3 HReO4 + Al(OH)3 = Al(ReO4)3 + 3 H2O
KClO3 = KCl + O2 =>
2 KClO3 = 2 KCl + 3 O2
Ca(PO2)2 + SiO2 + C = CaSiO3 + P2 + CO =>
Ca(PO2)2 + SiO2 + 3 C = CaSiO3 + P2 + 3 CO
Cr2O3 + C = Cr + CO =>
Cr2O3 + 3 C = 2 Cr + 3 CO
H2SO4 + NaNO3 + (NH2)2CO = NaHSO4 + H2O + (NH(NO2))2CO =>
2 H2SO4 + 2 NaNO3 + (NH2)2CO = 2 NaHSO4 + 2 H2O + (NH(NO2))2CO
Na + Fe2(SO4)3 = NaSO4 + Fe =>
3 Na + Fe2(SO4)3 = 3 NaSO4 + 2 Fe
Ga(a) + H2O(l) = Ga3O4(s) + H2 =>
3 Ga(a) + 4 H2O(l) = Ga3O4(s) + 4 H2
KNO3 = KNO2 + O2 =>
2 KNO3 = 2 KNO2 + O2
KCl + CaCO3 = CaCl2 + K2CO3 =>
2 KCl + CaCO3 = CaCl2 + K2CO3
NaHCO3 + C6H8O7 = Na3(C6H5O7) + CO2 + H2O =>
3 NaHCO3 + C6H8O7 = Na3(C6H5O7) + 3 CO2 + 3 H2O
FeS + NO2 + H2O = FeOOH + N2 + SO3{2-} + H{+} =>
8 FeS + 14 NO2 + 12 H2O = 8 FeOOH + 7 N2 + 8 SO3{2-} + 16 H{+}
Mo + H3PO4 = H2 + Mo(PO4)3 =>
2 Mo + 6 H3PO4 = 9 H2 + 2 Mo(PO4)3
Br2 + NH4(OH) = NH4Br + N2 + H2O =>
3 Br2 + 8 NH4(OH) = 6 NH4Br + N2 + 8 H2O
Al(s) + Mg(NO3)2(aq) = Al(NO3)2(aq) + Mg(s) =>
Al(s) + Mg(NO3)2(aq) = Al(NO3)2(aq) + Mg(s)
K2Cr2O7 + H2X + C2H5OH = Cr2X3 + K2X + CH3COOH + H2O =>
2 K2Cr2O7 + 8 H2X + 3 C2H5OH = 2 Cr2X3 + 2 K2X + 3 CH3COOH + 11 H2O
CuS(s) + O2(g) = S8 + CuO =>
8 CuS(s) + 4 O2(g) = S8 + 8 CuO
S(s) + O2(g) = SO3(g)(unbalanced) =>
2 S(s) + 3 O2(g) = 2 SO3(g)(unbalanced)
KH2PO4 + K2S2O5 = SO3 + H2PO3 + K =>
KH2PO4 + K2S2O5 = 2 SO3 + H2PO3 + 3 K
SrCl2 + KMnO4 + H3PO4 = Cl2 + Mn3(PO4)2 + Sr3(PO4)2 + K2HPO4 + H2O =>
15 SrCl2 + 6 KMnO4 + 17 H3PO4 = 15 Cl2 + 2 Mn3(PO4)2 + 5 Sr3(PO4)2 + 3 K2HPO4 + 24 H2O
Ti + N = Ti3N =>
3 Ti + N = Ti3N
enxofre + ozônio = dióxidodeenxofre =>
3 S + 2 O3 = 3 SO2
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
K4Fe(CN)6 + KMnO4 + H2SO4 = KHSO4 + Fe2(SO4)3 + MnSO4 + HNO3 + CO2 + H2O =>
10 K4Fe(CN)6 + 122 KMnO4 + 299 H2SO4 = 162 KHSO4 + 5 Fe2(SO4)3 + 122 MnSO4 + 60 HNO3 + 60 CO2 + 188 H2O
ZnCl2 + Na3PO4 = ZnPO4 + Na3Cl2 =>
ZnCl2 + Na3PO4 = ZnPO4 + Na3Cl2
Cu + HNO3 = Cu(NO3)2 + NO2 + H2O =>
Cu + 4 HNO3 = Cu(NO3)2 + 2 NO2 + 2 H2O
AgCl + NH4NO3 = AgNO3 + NH4Cl =>
AgCl + NH4NO3 = AgNO3 + NH4Cl
KH + S = K2S + H2 =>
2 KH + S = K2S + H2
P2O5(s) = P(s) + O2 =>
2 P2O5(s) = 4 P(s) + 5 O2
NaCl(aq) + H2O(l) = NaOH(aq) + HCl(aq) =>
NaCl(aq) + H2O(l) = NaOH(aq) + HCl(aq)
P2O5(s) = P(s) + O2 =>
2 P2O5(s) = 4 P(s) + 5 O2
C3H8 + O2 = CO2 + H2O =>
C3H8 + 5 O2 = 3 CO2 + 4 H2O
Al2O3 = Al + O2 =>
2 Al2O3 = 4 Al + 3 O2
Fe{2}O{3}HC1 = Fe{2}HC1{3} =>
Fe{2}O{3}HC1 = Fe{2}HC1{3}
Al(s) + CuSo4(aq) = Cu(s) + Al2(So4)3(aq) =>
2 Al(s) + 3 CuSo4(aq) = 3 Cu(s) + Al2(So4)3(aq)
C6H5NH2 + Br2 = C6H4Br3N + HBr =>
C6H5NH2 + 3 Br2 = C6H4Br3N + 3 HBr
NaCO3 + Ca2 = CaCO3 + Na =>
2 NaCO3 + Ca2 = 2 CaCO3 + 2 Na
KOH(aq) + NiCl2(aq) = Ni(OH)2 + KCl(aq) =>
2 KOH(aq) + NiCl2(aq) = Ni(OH)2 + 2 KCl(aq)
CH2CHCH2OH + KMnO4 + H2O = KOH + MnO2 + CH2(OH)CH(OH)CH2(OH) =>
3 CH2CHCH2OH + 2 KMnO4 + 4 H2O = 2 KOH + 2 MnO2 + 3 CH2(OH)CH(OH)CH2(OH)
S{-2} + I2 = I{-} + S =>
S{-2} + I2 = 2 I{-} + S
K4Fe(CN)6 + H2SO4 + H2O = K2SO4 + FeSO4 + (NH4)2SO4 + CO =>
K4Fe(CN)6 + 6 H2SO4 + 6 H2O = 2 K2SO4 + FeSO4 + 3(NH4)2SO4 + 6 CO
Zn + CuSO4 = Cu + ZnSO4 =>
Zn + CuSO4 = Cu + ZnSO4
HI + Na(OH) = NaI + H2O =>
HI + Na(OH) = NaI + H2O
AlCl3 + H2O = Al(OH)3 + HCl =>
AlCl3 + 3 H2O = Al(OH)3 + 3 HCl
Cu + NaNO3 = Cu(NO3)2 + Na =>
Cu + 2 NaNO3 = Cu(NO3)2 + 2 Na
CH2OH{-}CHOH{-}CHOH{-}CH2OH + Na = CH2ONa{-}CHONa{-}CH2ONa + H2 =>
2 CH2OH{-}CHOH{-}CHOH{-}CH2OH + 2 Na = 2 CH2ONa{-}CHONa{-}CH2ONa + H2
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