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Cu2S + O2(g) = 2 Cu(s) + SO2(g)
H2SO4(aq) + NaBr(aq) = Br2(l) + SO2(g) + H2O(l) + Na2SO4(aq) =>
2 H2SO4(aq) + 2 NaBr(aq) = Br2(l) + SO2(g) + 2 H2O(l) + Na2SO4(aq)
H{+} + [Cd(NH3)4]{2+} = Cd{2+} + NH4{+} =>
4 H{+} + [Cd(NH3)4]{2+} = Cd{2+} + 4 NH4{+}
P2{3+} + H2O = PO4{-} + e + H{+} =>
P2{3+} + 8 H2O = 2 PO4{-} + 11e + 16 H{+}
K3[Fe(CN)6] + O2 = K2CO3 + Fe3O4 + CO2 + N2 =>
12 K3[Fe(CN)6] + 89 O2 = 18 K2CO3 + 4 Fe3O4 + 54 CO2 + 36 N2
CH4(g) + O2(g) = C(g) + H2O =>
CH4(g) + O2(g) = C(g) + 2 H2O
Hg(NO3)2 = Hg2 + NO3 =>
2 Hg(NO3)2 = Hg2 + 4 NO3
SnS + HNO3 = H2S + Sn(NO3)2 =>
SnS + 2 HNO3 = H2S + Sn(NO3)2
NaCl + H2SO4 = NaHSO4 + HCl =>
NaCl + H2SO4 = NaHSO4 + HCl
BaCr2O7 + NaOH = NaCr2O7 + BaOH =>
BaCr2O7 + NaOH = NaCr2O7 + BaOH
K2[HgI4] + NH3 + KOH = [Hg2N]I(H2O) + KI + H2O =>
2 K2[HgI4] + NH3 + 3 KOH = [Hg2N]I(H2O) + 7 KI + 2 H2O
Mn(Br)2 + NaOH + NaBrO3 = Na2MnO4 + NaBr + H2O =>
3 Mn(Br)2 + 12 NaOH + 2 NaBrO3 = 3 Na2MnO4 + 8 NaBr + 6 H2O
CoO + H2O = Co1(OH)2 =>
CoO + H2O = Co1(OH)2
K2O + H3PO4 = H2O + K3PO4 =>
3 K2O + 2 H3PO4 = 3 H2O + 2 K3PO4
AgNO3 + NaBr = AgBr + NO3Na =>
AgNO3 + NaBr = AgBr + NO3Na
C6H6(l) + (b)O2(g) = (c)CO2(g) + (d)H2O(l) =>
2 C6H6(l) + 15(b)O2(g) = 12(c)CO2(g) + 6(d)H2O(l)
Cu2O2CuO = CuO =>
Cu2O2CuO = 3 CuO
Zn + H3PO4 = Zn3(PO4)2 + H2 = =>
3 Zn + 2 H3PO4 = Zn3(PO4)2 + 3 H2
H3PO4 + Ba(OH)2 = Ba3(PO4)2 + H2O =>
2 H3PO4 + 3 Ba(OH)2 = Ba3(PO4)2 + 6 H2O
Hg2CrO4 + NH4OH + KNO3 = HgNH2NO3 + K2CrO4 + Hg2O + H2O =>
9 Hg2CrO4 + 14 NH4OH + 18 KNO3 = 16 HgNH2NO3 + 9 K2CrO4 + Hg2O + 19 H2O
Al2S3 + Na = Na2S + Al =>
Al2S3 + 6 Na = 3 Na2S + 2 Al
Pb + S(s) = PbS =>
Pb + S(s) = PbS
Al(s) + Cu(NO3)(aq) = Cu(s) + Al(NO3)2(aq) =>
Al(s) + 2 Cu(NO3)(aq) = 2 Cu(s) + Al(NO3)2(aq)
SiF4 + KOH = KF + Si(OH)4 =>
SiF4 + 4 KOH = 4 KF + Si(OH)4
NaHCO3 + HC2H3O2 = H2O + NaC2H3O2 + CO2 =>
NaHCO3 + HC2H3O2 = H2O + NaC2H3O2 + CO2
Mg + HNO3 = Mg(NO3)2 + NH3 + H2O =>
4 Mg + 9 HNO3 = 4 Mg(NO3)2 + NH3 + 3 H2O
C6H12(g) + O2(g) = CO2(g) + H2O(g) =>
C6H12(g) + 9 O2(g) = 6 CO2(g) + 6 H2O(g)
Zn(OH)2 + MgCl2 = ZnCl2 + Mg(OH)2 =>
Zn(OH)2 + MgCl2 = ZnCl2 + Mg(OH)2
C18H29SO3Na + O2 = CO2 + H2O + SO4 + NaOH =>
C18H29SO3Na + 26 O2 = 18 CO2 + 14 H2O + SO4 + NaOH
AgNO3 + NaBr = AgBr + NO3Na =>
AgNO3 + NaBr = AgBr + NO3Na
P + H2SO4 = SO2 + H3PO4 + H2O =>
2 P + 5 H2SO4 = 5 SO2 + 2 H3PO4 + 2 H2O
NH4NO3 + Na2SiO3 + H2O = NH4OH + H2SiO3 + NaNO3 =>
2 NH4NO3 + Na2SiO3 + 2 H2O = 2 NH4OH + H2SiO3 + 2 NaNO3
C6H5NO2 + Cl2 = C6H5Cl + NO2 =>
2 C6H5NO2 + Cl2 = 2 C6H5Cl + 2 NO2
C6H5OH + KOH = C6H5OK + H2O =>
C6H5OH + KOH = C6H5OK + H2O
KNO3 + CaCl2 = KCl + Ca(NO3)2 =>
2 KNO3 + CaCl2 = 2 KCl + Ca(NO3)2
KMnO4 + K4Fe(CN)6 + H2SO4 = K2SO4 + MnSO4 + K3Fe(CN)6 + H2O =>
KMnO4 + 5 K4Fe(CN)6 + 4 H2SO4 = 3 K2SO4 + MnSO4 + 5 K3Fe(CN)6 + 4 H2O
Al2S3 + Na = Na2S + Al =>
Al2S3 + 6 Na = 3 Na2S + 2 Al
Mg + HCl = MgCl2 + H2 =>
Mg + 2 HCl = MgCl2 + H2
BaCrO4 + CH3COOH = Ba(CH3COO)2 + H2CrO4 =>
BaCrO4 + 2 CH3COOH = Ba(CH3COO)2 + H2CrO4
Fe(s) + H2SO4(aq) = H2(g) + Fe(SO4)3(aq) =>
Fe(s) + 3 H2SO4(aq) = 3 H2(g) + Fe(SO4)3(aq)
FeO + H2SiO3 = FeSiO3 + H2O =>
FeO + H2SiO3 = FeSiO3 + H2O
H3SbO3 + Ca(OH)2 = Ca3(SbO3)2 + H2O =>
2 H3SbO3 + 3 Ca(OH)2 = Ca3(SbO3)2 + 6 H2O
Al(s) + HNO3 = Al(NO3)3 + NO + H2O =>
Al(s) + 4 HNO3 = Al(NO3)3 + NO + 2 H2O
HCIO4 + KOH = KCIO4 + H2O =>
HCIO4 + KOH = KCIO4 + H2O
Al + CuF = AlF3 + Cu =>
Al + 3 CuF = AlF3 + 3 Cu
CaH + Br2 = CaBr + HBr =>
CaH + Br2 = CaBr + HBr
Cu + Zn(OH)3 = Cu(OH)2 + Zn =>
3 Cu + 2 Zn(OH)3 = 3 Cu(OH)2 + 2 Zn
SiH4 = Si + H2 =>
SiH4 = Si + 2 H2
Sr(HCO3)2 + HCl = CO2 + H2O + SrCl2 =>
Sr(HCO3)2 + 2 HCl = 2 CO2 + 2 H2O + SrCl2
Ca(OH)2 + NO2 = Ca(NO2)2 + H2O + Ca(NO3)2 =>
2 Ca(OH)2 + 4 NO2 = Ca(NO2)2 + 2 H2O + Ca(NO3)2
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