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2 CaS + 4 H = Ca2 + 2 H2S
CH3OH + CO2 = HCOOC2H5 + H2O =>
7 CH3OH + 2 CO2 = 3 HCOOC2H5 + 5 H2O
Ag{+} + Cl{-} = AgCl =>
Ag{+} + Cl{-} = AgCl
CaSO4(aq) + Ba(NO3)2(aq) = Ca(NO3)2(aq) + BaSO4(s) =>
CaSO4(aq) + Ba(NO3)2(aq) = Ca(NO3)2(aq) + BaSO4(s)
Al + Na2SO4 = Al2(SO4)3 + Na =>
2 Al + 3 Na2SO4 = Al2(SO4)3 + 6 Na
Fe(OH)3 + H2SO4 = Fe2(SO4)3 + H2O =>
2 Fe(OH)3 + 3 H2SO4 = Fe2(SO4)3 + 6 H2O
V2O5 + HCl(aq) = VOCl3 + H2O =>
V2O5 + 6 HCl(aq) = 2 VOCl3 + 3 H2O
PbCl2 + F2 = PbF + Cl4 =>
2 PbCl2 + F2 = 2 PbF + Cl4
K3PO4 + BaCl2 = KCl + Ba3(PO4)2 =>
2 K3PO4 + 3 BaCl2 = 6 KCl + Ba3(PO4)2
HNo3 + LiOH = LiNo3 + H2O =>
HNo3 + LiOH = LiNo3 + H2O
Cd + H2SO4 = H2S + CdSO4 + H2O =>
4 Cd + 5 H2SO4 = H2S + 4 CdSO4 + 4 H2O
AgBr = Ag + Br2 =>
2 AgBr = 2 Ag + Br2
ZnCO3 + N2 = ZnN2 + CO3 =>
ZnCO3 + N2 = ZnN2 + CO3
KMnO4 + H2SO4 + KI = K2SO4 + I2 + MnSO4 + H2O =>
2 KMnO4 + 8 H2SO4 + 10 KI = 6 K2SO4 + 5 I2 + 2 MnSO4 + 8 H2O
Na2SO4 + Al = Na2S + Al2O3 =>
3 Na2SO4 + 8 Al = 3 Na2S + 4 Al2O3
C6H5OH + C4H9OH = C10H14O + H2O =>
C6H5OH + C4H9OH = C10H14O + H2O
Fe3S2 + O2 + H2O = Fe(OH)3 + SO4{2-} + H{+} =>
4 Fe3S2 + 21 O2 + 26 H2O = 12 Fe(OH)3 + 8 SO4{2-} + 16 H{+}
KMnO4 + H2SO4 + KCl = K2SO4 + MnSO4 + Cl2 + H2O =>
2 KMnO4 + 8 H2SO4 + 10 KCl = 6 K2SO4 + 2 MnSO4 + 5 Cl2 + 8 H2O
HCOOH + BaO = Ba + COOH + H2O =>
2 HCOOH + BaO = Ba + 2 COOH + H2O
CuSO4 + KOH = Cu(OH)2 + K2SO4 =>
CuSO4 + 2 KOH = Cu(OH)2 + K2SO4
PbS + HNO3 = Pb(NO3)2 + H2SO4 + NO + H2O =>
3 PbS + 14 HNO3 = 3 Pb(NO3)2 + 3 H2SO4 + 8 NO + 4 H2O
Aq + PO4 = Aq3PO4 =>
3 Aq + PO4 = Aq3PO4
CaOH2 + P + H2O = PH3 + Ca(H2PO2)2 =>
3 CaOH2 + 10 P + 9 H2O = 4 PH3 + 3 Ca(H2PO2)2
H{+} + Cr2O7 + C2H5OH = Cr{3+} + CO2 + H2O =>
18 H{+} + 3 Cr2O7 + 2 C2H5OH = 6 Cr{3+} + 4 CO2 + 15 H2O
Al2(SO4)3 + KOH = Al(OH)3 + K2SO4 =>
Al2(SO4)3 + 6 KOH = 2 Al(OH)3 + 3 K2SO4
K + CHOOH = CHOOK + H2 =>
2 K + 2 CHOOH = 2 CHOOK + H2
Cr2O3 + Na2SO3 = NaCrO2 + SO2 =>
Cr2O3 + Na2SO3 = 2 NaCrO2 + SO2
C6O5 + H3 = C6H5O5 =>
3 C6O5 + 5 H3 = 3 C6H5O5
Ba(NO3)2 + K2SO4 = KNO3 + BaSO4 =>
Ba(NO3)2 + K2SO4 = 2 KNO3 + BaSO4
CH3(CH2)6CH3 + O2 = CO2 + H2O =>
2 CH3(CH2)6CH3 + 25 O2 = 16 CO2 + 18 H2O
Cr2O7 + H2SO4 + KI = K2SO4 + Cr2(SO4)3 + H2O + I2 =>
Cr2O7 + 7 H2SO4 + 8 KI = 4 K2SO4 + Cr2(SO4)3 + 7 H2O + 4 I2
CaO + SrCl2 = CaCl2 + SrO =>
CaO + SrCl2 = CaCl2 + SrO
MgO + HCl = MgCl2 + H2O =>
MgO + 2 HCl = MgCl2 + H2O
Fe3O4 + H2SO4 = Fe + SO4 + H2O =>
Fe3O4 + 4 H2SO4 = 3 Fe + 4 SO4 + 4 H2O
C6H8O7 + NaHCO3 + H2O = NaH11C7O11 =>
C6H8O7 + NaHCO3 + H2O = NaH11C7O11
AgI + NaOH = AgOH + NaI =>
AgI + NaOH = AgOH + NaI
C + H + O = CHO =>
C + H + O = CHO
Ca(NO3)2 + Na2CO3 = CaCO3 + Na2(NO3)2 =>
Ca(NO3)2 + Na2CO3 = CaCO3 + Na2(NO3)2
ZnSO4 + NaOH = Zn(OH)2 + Na2SO4 =>
ZnSO4 + 2 NaOH = Zn(OH)2 + Na2SO4
KCN + HBr = KBr + HCN =>
KCN + HBr = KBr + HCN
CaCO3 + HCl + (NH4)2C2O4 = CaC2O4 + H2O + CO2 + NH4Cl =>
CaCO3 + 2 HCl + (NH4)2C2O4 = CaC2O4 + H2O + CO2 + 2 NH4Cl
Ag2S + NH3 + H2O = (Ag(NH3)2){+} + HS{-} + OH{-} =>
Ag2S + 4 NH3 + H2O = 2(Ag(NH3)2){+} + HS{-} + OH{-}
CrSO4 + Na2MnO4 + H2SO4 = Cr2(SO4)3 + MnSO4 + Na2SO4 + H2O =>
4 CrSO4 + Na2MnO4 + 4 H2SO4 = 2 Cr2(SO4)3 + MnSO4 + Na2SO4 + 4 H2O
B + O2 = BO2 =>
B + O2 = BO2
CH2 = CHCH2CH3 =>
3 CH2 = CHCH2CH3
K2SO4 + HNO3 = H2SO4 + KNO3 =>
K2SO4 + 2 HNO3 = H2SO4 + 2 KNO3
Na2SO4 + Ba(NO3)2 = BaSO4 + NaNO3 =>
Na2SO4 + Ba(NO3)2 = BaSO4 + 2 NaNO3
Cl + phosphorus = PCl5 =>
5 Cl + P = PCl5
NaHSO4 + Zn = ZnSO4 + Na + H2 =>
2 NaHSO4 + 2 Zn = 2 ZnSO4 + 2 Na + H2
Hg2OH + H3PO4 = Hg2 + PO4 + H2O =>
3 Hg2OH + H3PO4 = 3 Hg2 + PO4 + 3 H2O
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