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4 Cu(s) + 4 H2SO4 = 3 CuSO4 + CuS(s) + 4 H2O
Hg(NO3)2(aq) + NaI(aq) = NaNO3(aq) + HgI2(s) =>
Hg(NO3)2(aq) + 2 NaI(aq) = 2 NaNO3(aq) + HgI2(s)
Br + Zn(NO3)2 = Zn + Br(NO3)2 =>
Br + Zn(NO3)2 = Zn + Br(NO3)2
Mn(NO3)2 + NaBiO3 + HNO3 = MnO4 + BiONO3 + NaNO3 + H2O =>
Mn(NO3)2 + 3 NaBiO3 + 4 HNO3 = MnO4 + 3 BiONO3 + 3 NaNO3 + 2 H2O
CrCl2*6H2O + Na(CH3COO) = (Cr(CH3COO)2)2*2H2O + NaCl + H2O =>
2 CrCl2*6H2O + 4 Na(CH3COO) = (Cr(CH3COO)2)2*2H2O + 4 NaCl + 10 H2O
Al2S3 + CuSO4 = CuS + Al2(SO4)3 =>
Al2S3 + 3 CuSO4 = 3 CuS + Al2(SO4)3
Z2 + HCl = ZCl2 + H =>
Z2 + 4 HCl = 2 ZCl2 + 4 H
K2Cr2O7 + Zn + KOH + H2O = K3(Cr(OH)6) + K2(Zn(OH)4) =>
K2Cr2O7 + 3 Zn + 10 KOH + 7 H2O = 2 K3(Cr(OH)6) + 3 K2(Zn(OH)4)
OCl + SO3 = SO4 + Cl =>
OCl + SO3 = SO4 + Cl
KI + KNO2 + H2SO4 = NO + K2SO4 + I2 + H2O =>
2 KI + 2 KNO2 + 2 H2SO4 = 2 NO + 2 K2SO4 + I2 + 2 H2O
benzene = biphenyl + hydrogen =>
2 C6H6 = C12H10 + H2
C7O3H6 + Fe = Fe(C7O3H6)3 =>
3 C7O3H6 + Fe = Fe(C7O3H6)3
LiOH + Na2SO4 = Li2(SO4) + NaOH =>
2 LiOH + Na2SO4 = Li2(SO4) + 2 NaOH
S(l) + Na(s) = Na2S =>
S(l) + 2 Na(s) = Na2S
KHC4H4O6(s) + NaHCO3 = KNaC4H4O6(g) + H2O(l) + CO2(g) =>
KHC4H4O6(s) + NaHCO3 = KNaC4H4O6(g) + H2O(l) + CO2(g)
K2Cr2O7 + HI = KI + CrI3 + H2O + I2 =>
K2Cr2O7 + 14 HI = 2 KI + 2 CrI3 + 7 H2O + 3 I2
FeS + O2 + H2O = Fe + H2SO4 =>
2 FeS + 3 O2 + 2 H2O = 2 Fe + 2 H2SO4
NH3 + KClO3 = KNO3 + KCl + Cl2 + H2O =>
2 NH3 + 3 KClO3 = 2 KNO3 + KCl + Cl2 + 3 H2O
K + Br2 = KBr =>
2 K + Br2 = 2 KBr
NH3 + CO2 + H2O = NH4HCO3 =>
NH3 + CO2 + H2O = NH4HCO3
NaHCO3 + N2 = NaNO3 + CH =>
2 NaHCO3 + N2 = 2 NaNO3 + 2 CH
Pd(OH)3 = Pd2O3 + H2O =>
2 Pd(OH)3 = Pd2O3 + 3 H2O
Na3PO4 + Zn = ZnPO4 + Na3 =>
Na3PO4 + Zn = ZnPO4 + Na3
CaOH2 + Si + H2O = CaSiO3 + H2 =>
CaOH2 + Si + 2 H2O = CaSiO3 + 3 H2
NH{4}NO{3} + NaOH = NaNO{3} + NH{3} + H{2}O =>
4 NH{4}NO{3} + NaOH = NaNO{3} + 3 NH{3} + 2 H{2}O
CrCl3 + NaBiO3 + HCl = BiCl3 + Na2Cr2O7 + H2O + NaCl =>
2 CrCl3 + 3 NaBiO3 + 4 HCl = 3 BiCl3 + Na2Cr2O7 + 2 H2O + NaCl
AlO2 + HCl = Al + Cl2 + H2O =>
AlO2 + 4 HCl = Al + 2 Cl2 + 2 H2O
ZnO + CO = Zn + COO =>
ZnO + CO = Zn + COO
Na2(CO3) + Fe2Br3 = Na2Br3 + Fe2(CO3) =>
Na2(CO3) + Fe2Br3 = Na2Br3 + Fe2(CO3)
Cs2O + NaOH = CsOH + Na2O =>
Cs2O + 2 NaOH = 2 CsOH + Na2O
C16H30 + O2 = C + H2O =>
2 C16H30 + 15 O2 = 32 C + 30 H2O
H2O + NH3 + NO2 = NH4NO3 =>
5 H2O + 6 NH3 + 8 NO2 = 7 NH4NO3
NH3 + Cl = N + HCl =>
NH3 + 3 Cl = N + 3 HCl
C + H2O = CH4 + CO2 =>
2 C + 2 H2O = CH4 + CO2
CH3COOH + NaOH = H2O + CO2 + Na =>
CH3COOH + 8 NaOH = 6 H2O + 2 CO2 + 8 Na
CH2CH2OH + KMnO4 + H2SO4 = CH3COH + MnSO4 + H2O + KSO4 =>
4 CH2CH2OH + KMnO4 + 2 H2SO4 = 4 CH3COH + MnSO4 + 4 H2O + KSO4
NaI + K2S = KI + Na2S =>
2 NaI + K2S = 2 KI + Na2S
Ce4{+} + Fe2{+} = Ce3{+} + Fe3{+} =>
3 Ce4{+} + 3 Fe2{+} = 4 Ce3{+} + 2 Fe3{+}
ZnO + Al2O3 + Sb2O3 = Al4875Sb125Zn9500O100 + O2 =>
19000 ZnO + 4875 Al2O3 + 125 Sb2O3 = 2 Al4875Sb125Zn9500O100 + 16900 O2
CaCl2(NH4)2CO3 = CaCO3 + NH4Cl =>
CaCl2(NH4)2CO3 = CaCO3 + 2 NH4Cl
NaBr + CI2 = NaCI2 + Br2 =>
2 NaBr + 2 CI2 = 2 NaCI2 + Br2
K2Cr2O7 + Na2SO3 + H2SO4 = Cr2(SO4)3 + K2SO4 + Na2SO4 + H2O =>
K2Cr2O7 + 3 Na2SO3 + 4 H2SO4 = Cr2(SO4)3 + K2SO4 + 3 Na2SO4 + 4 H2O
C5H12 + O2 = C5OH10 + H2O =>
C5H12 + O2 = C5OH10 + H2O
Fe2O3 + NaBr = FeBr3 + Na2O =>
Fe2O3 + 6 NaBr = 2 FeBr3 + 3 Na2O
MgO3C + HCl = MgCl2 + H2O + CO2 =>
MgO3C + 2 HCl = MgCl2 + H2O + CO2
CH3COOH + MgCO3 = (CH3COO)2Mg + CO2 + H2O =>
2 CH3COOH + MgCO3 = (CH3COO)2Mg + CO2 + H2O
Zn(OH)2 + H2SO4 + H2O = [Zn(H2O)4]SO4 =>
Zn(OH)2 + H2SO4 + 2 H2O = [Zn(H2O)4]SO4
K2CrO4 + AgNO3 = Ag2CrO4 + KNO3 =>
K2CrO4 + 2 AgNO3 = Ag2CrO4 + 2 KNO3
Hg(NO3)2 + Na2S2O3 + H2O = HgS + Na2SO4 + HNO3 =>
Hg(NO3)2 + Na2S2O3 + H2O = HgS + Na2SO4 + 2 HNO3
SOCl2 + Cl2 + LiOH = Li2SO4 + LiCl + H2O =>
SOCl2 + Cl2 + 6 LiOH = Li2SO4 + 4 LiCl + 3 H2O
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