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2 Zn + H2S = Zn2S + H2
CaCO3 + SH2 = CaS + CO2 + H2O =>
CaCO3 + SH2 = CaS + CO2 + H2O
Na3AlO3 + H2SO4 = Al2(SO4)3 + Na2SO4 + H2O =>
2 Na3AlO3 + 6 H2SO4 = Al2(SO4)3 + 3 Na2SO4 + 6 H2O
Cu2S2 = CuS =>
Cu2S2 = 2 CuS
CuCl2 + Al = AlCl3 + Cu =>
3 CuCl2 + 2 Al = 2 AlCl3 + 3 Cu
I2 + S2O3{2-} + H2O = S2O4{2-} + I{-} + H{+} =>
I2 + S2O3{2-} + H2O = S2O4{2-} + 2 I{-} + 2 H{+}
F + NH4I = FI + NH4 =>
F + NH4I = FI + NH4
H2SO3OH = HSO3 + H2O =>
H2SO3OH = HSO3 + H2O
FeBr2 + O2 = Fe2O3 + Br2 =>
4 FeBr2 + 3 O2 = 2 Fe2O3 + 4 Br2
C3H8O3 + C18H34O2 = C57H104O6 + H2O =>
C3H8O3 + 3 C18H34O2 = C57H104O6 + 3 H2O
CaSO4 + (NH4)2C2O4 = CaC2O4 + (NH4)2SO4 =>
CaSO4 + (NH4)2C2O4 = CaC2O4 + (NH4)2SO4
H2SO4 + Mg = H2SO2 + MgO2 =>
H2SO4 + Mg = H2SO2 + MgO2
C6H5CH(OH)CH3 + KMnO4 + H2SO4 = C6H5COCH3 + K2SO4 + MnSO4 + H2O =>
5 C6H5CH(OH)CH3 + 2 KMnO4 + 3 H2SO4 = 5 C6H5COCH3 + K2SO4 + 2 MnSO4 + 8 H2O
K4[Fe(CN)6] + H2SO4 + H2O2 = K2SO4 + Fe2(SO4)3 + NO + CO2 + H2O =>
2 K4[Fe(CN)6] + 7 H2SO4 + 43 H2O2 = 4 K2SO4 + Fe2(SO4)3 + 12 NO + 12 CO2 + 50 H2O
Hg(NO3)2 + (NH4)(SCN) = Hg(SCN)2 + (NH4)(NO3) =>
Hg(NO3)2 + 2(NH4)(SCN) = Hg(SCN)2 + 2(NH4)(NO3)
Al + HCl** = AlCl + H2 =>
2 Al + 2 HCl** = 2 AlCl + H2
(Co(NH3)5Cl)Cl2 + NaNO2 = (Co(NH3)5NO2)Cl2 + NaCl =>
(Co(NH3)5Cl)Cl2 + NaNO2 = (Co(NH3)5NO2)Cl2 + NaCl
NiCl2*6H2O + NH3*H2O = Ni(NH3)6Cl2 + H2O =>
NiCl2*6H2O + 6 NH3*H2O = Ni(NH3)6Cl2 + 12 H2O
KMnO4 + NaOH + KI = K2MnO4 + KIO3 + H2O + Na2MnO4 =>
6 KMnO4 + 6 NaOH + KI = 3 K2MnO4 + KIO3 + 3 H2O + 3 Na2MnO4
C + H2 = C5H8 =>
5 C + 4 H2 = C5H8
HgSO4 + (NH4)2S = (NH4)2SO4 + HgS =>
HgSO4 + (NH4)2S = (NH4)2SO4 + HgS
Ge + Se = GeSe =>
Ge + Se = GeSe
Na2SO4 + C2H5OH = C2H5ONa + H2SO4 =>
Na2SO4 + 2 C2H5OH = 2 C2H5ONa + H2SO4
CaO + SiO2 = CaSiO3 =>
CaO + SiO2 = CaSiO3
Na2CO3 + SrCl2 = NaCl + CO3Sr =>
Na2CO3 + SrCl2 = 2 NaCl + CO3Sr
C + HNO3 = CO2 + NO2 + H2O =>
C + 4 HNO3 = CO2 + 4 NO2 + 2 H2O
ZrO2 + CCl4 = ZrCl4 + COCl2 =>
ZrO2 + 2 CCl4 = ZrCl4 + 2 COCl2
C2H4O3 + H2O = H2O2 + CH3COOH =>
C2H4O3 + H2O = H2O2 + CH3COOH
TI(OH)4 = TIO2 + H2O =>
TI(OH)4 = TIO2 + 2 H2O
N2 + CaO = NO + Ca =>
N2 + 2 CaO = 2 NO + 2 Ca
Hg2(NO3)2(aq) + HCl(aq) = Hg2Cl2(s) + H(NO3)(aq) =>
Hg2(NO3)2(aq) + 2 HCl(aq) = Hg2Cl2(s) + 2 H(NO3)(aq)
H3AsO4 + H2SO3 = HAsO2 + SO4 + H2O =>
2 H3AsO4 + H2SO3 = 2 HAsO2 + SO4 + 3 H2O
Ca(No3)2 + K = K(No3)2 + Ca =>
Ca(No3)2 + K = K(No3)2 + Ca
HCl + Na = NaCl + H2 =>
2 HCl + 2 Na = 2 NaCl + H2
Mg + HCl = MgCl{+2} + H{-2} =>
Mg + HCl = MgCl{+2} + H{-2}
Zn3P2NaOH = Zn3OHNaP2 =>
Zn3P2NaOH = Zn3OHNaP2
Li2SO4 + SrCl2 = Li2Cl2 + SrSO4 =>
Li2SO4 + SrCl2 = Li2Cl2 + SrSO4
Hg + KNO3 + H2SO4 = Hg2SO4 + NO + H2O + K2SO4 =>
6 Hg + 2 KNO3 + 4 H2SO4 = 3 Hg2SO4 + 2 NO + 4 H2O + K2SO4
ZnI2 + NaOH = NaI + Zn(OH)2 =>
ZnI2 + 2 NaOH = 2 NaI + Zn(OH)2
H2SO4 + C12H22O11 = CO2 + H2O + SO2 =>
24 H2SO4 + C12H22O11 = 12 CO2 + 35 H2O + 24 SO2
Zn(s) + CuS(aq) = ZnS(aq) + Cu(s) =>
Zn(s) + CuS(aq) = ZnS(aq) + Cu(s)
NaOH + Cl2 = NaCl + NaClO2 + H2O =>
4 NaOH + 2 Cl2 = 3 NaCl + NaClO2 + 2 H2O
AgCN = Ag + C2N2 =>
2 AgCN = 2 Ag + C2N2
Cl2 + NaOH = NaClO3 + NaCl + H2O =>
3 Cl2 + 6 NaOH = NaClO3 + 5 NaCl + 3 H2O
NaOH + Cl2 = NaCl + NaClO2 + H2O =>
4 NaOH + 2 Cl2 = 3 NaCl + NaClO2 + 2 H2O
Fe + O + H2SO4 = FeSO4 + H2O =>
Fe + O + H2SO4 = FeSO4 + H2O
propene + KMnO4 + KOH = CO2 + K2MnO4 + H2O =>
CH3CHCH2 + 18 KMnO4 + 18 KOH = 3 CO2 + 18 K2MnO4 + 12 H2O
Li + Na3N = Na + Li3N =>
3 Li + Na3N = 3 Na + Li3N
C6H14 + Br2 + CCl4 = BrCl + C7H14 =>
C6H14 + 2 Br2 + CCl4 = 4 BrCl + C7H14
CuO + O2 = CuO2 =>
2 CuO + O2 = 2 CuO2
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