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H2S + Fe = FeS + 2 H
K2CO3 + H2O = KOH + KHCO3 =>
K2CO3 + H2O = KOH + KHCO3
Pb + HBr = Pb(Br)2 + H2 =>
Pb + 2 HBr = Pb(Br)2 + H2
Al + NH4ClO4 = Al2O3 + Cl3 + NO + H2O =>
2 Al + 3 NH4ClO4 = Al2O3 + Cl3 + 3 NO + 6 H2O
NH4OH + Sr = Sr(OH)2 + H2 + NH3 =>
2 NH4OH + Sr = Sr(OH)2 + H2 + 2 NH3
Ag2S + NaCl = AgCl + Na2S =>
Ag2S + 2 NaCl = 2 AgCl + Na2S
PbCl4 + Al2(Cr2O7)3 = Pb(Cr2O7)2 + AlCl3 =>
3 PbCl4 + 2 Al2(Cr2O7)3 = 3 Pb(Cr2O7)2 + 4 AlCl3
CuZn + H2SO4 = CuSO4 + ZnSO4 + H2 =>
CuZn + 2 H2SO4 = CuSO4 + ZnSO4 + 2 H2
N2 + K = K3N =>
N2 + 6 K = 2 K3N
C20H32 + Cl4 = C + HCl =>
C20H32 + 8 Cl4 = 20 C + 32 HCl
NH4Cl + Br = N2 + HCl + HBr =>
2 NH4Cl + 6 Br = N2 + 2 HCl + 6 HBr
Na2S + AgNo3 = NaNo3 + Ag2S =>
Na2S + 2 AgNo3 = 2 NaNo3 + Ag2S
Cl + BrO3 = ClO3 + Br2 =>
2 Cl + 2 BrO3 = 2 ClO3 + Br2
C3P4 = C + P =>
C3P4 = 3 C + 4 P
BF3BN + IF = NI3 + BF3 =>
BF3BN + 3 IF = NI3 + 2 BF3
NIO + H2 = NI + H2O =>
NIO + H2 = NI + H2O
Al2(SO4)3 + OH = Al(OH)3 + SO4 =>
Al2(SO4)3 + 6 OH = 2 Al(OH)3 + 3 SO4
CaCl2 + H2O = OH + CaCl2H =>
CaCl2 + H2O = OH + CaCl2H
ZnS + CH3COONa = Zn(CH3COO)2 + Na2S =>
ZnS + 2 CH3COONa = Zn(CH3COO)2 + Na2S
Mn(CH3COO)2 + Na2S = MnS + NaCH3COO =>
Mn(CH3COO)2 + Na2S = MnS + 2 NaCH3COO
Ag + Hg(OH)2 = Ag(OH)2 + Hg =>
Ag + Hg(OH)2 = Ag(OH)2 + Hg
C10H15N + HCl = C10H15NHCl =>
C10H15N + HCl = C10H15NHCl
Zn(NO3)2 + HOH = HNO3 + Zn(OH)2 =>
Zn(NO3)2 + 2 HOH = 2 HNO3 + Zn(OH)2
H2SO4 + NaOH = Na2SO4 + H2O =>
H2SO4 + 2 NaOH = Na2SO4 + 2 H2O
C + H2 = CH4 =>
C + 2 H2 = CH4
CuSO4 + NaOH = Cu(OH)2 + Na2SO4 =>
CuSO4 + 2 NaOH = Cu(OH)2 + Na2SO4
C + H2 = CH4 =>
C + 2 H2 = CH4
Al(HO)3 + H2CO3 = Al2(CO3)3 + H2O =>
2 Al(HO)3 + 3 H2CO3 = Al2(CO3)3 + 6 H2O
ZnS + H2SO4 = ZnSH2SO4 =>
ZnS + H2SO4 = ZnSH2SO4
Cr2O3 + SO3 = Cr2(SO4)3 =>
Cr2O3 + 3 SO3 = Cr2(SO4)3
N2 + K = K3N =>
N2 + 6 K = 2 K3N
CaBr + LiS = LiBr + CaS =>
CaBr + LiS = LiBr + CaS
CaCO3 + BaCl = BaCO3 + CaCl =>
CaCO3 + BaCl = BaCO3 + CaCl
ZnBr2(ac) + AgNO3(ac) = Zn(NO3)2(ac) + AgBr(s) =>
ZnBr2(ac) + 2 AgNO3(ac) = Zn(NO3)2(ac) + 2 AgBr(s)
CuSO4 + CH3COOH = Cu(CH3COO)2 + H2SO4 =>
CuSO4 + 2 CH3COOH = Cu(CH3COO)2 + H2SO4
NH4Cl(s) + CaO(s) = CaCl2(s) + NH3(g) + H2O(l) =>
2 NH4Cl(s) + CaO(s) = CaCl2(s) + 2 NH3(g) + H2O(l)
H2SO4 + Na2S2O4 + KMnO4 = K2SO4 + Na2SO4 + MnSO4 + H2O =>
4 H2SO4 + 5 Na2S2O4 + 6 KMnO4 = 3 K2SO4 + 5 Na2SO4 + 6 MnSO4 + 4 H2O
C4H9Br + Na = C8H18 + NaBr =>
2 C4H9Br + 2 Na = C8H18 + 2 NaBr
Cu(NH3)4(OH)2 + S2O4 = CuS2O4 + NH3 + OH =>
Cu(NH3)4(OH)2 + S2O4 = CuS2O4 + 4 NH3 + 2 OH
Ca(OH)2 + KCO3 = K(OH)2 + CaCO3 =>
Ca(OH)2 + KCO3 = K(OH)2 + CaCO3
CaO + H2SO4 = CaSO4H2O =>
CaO + H2SO4 = CaSO4H2O
NaOH + (Na2)2CO3 = Na2CO3 + Na2OH =>
2 NaOH + (Na2)2CO3 = Na2CO3 + 2 Na2OH
KNO2 + KMnO4 + NaOH = K2MnO4 + Na2MnO4 + KNO3 + H2O =>
KNO2 + 2 KMnO4 + 2 NaOH = K2MnO4 + Na2MnO4 + KNO3 + H2O
FeCO3 + H2SO4 = FeSO4 + CO3H2 =>
FeCO3 + H2SO4 = FeSO4 + CO3H2
K2S + MgSO = K2SO4 + MgS =>
K2S + 4 MgSO = K2SO4 + 4 MgS
Fe2S + HNO3 + H{+} = Fe{3+} + SO2 + NO2 + H2O =>
Fe2S + 10 HNO3 + 6 H{+} = 2 Fe{3+} + SO2 + 10 NO2 + 8 H2O
FeCl3 + CoCl2*6H2O + NaOH + CH3COOH = Co2FeO4 + NaCl + H2O + CH3COH =>
2 FeCl3 + 4 CoCl2*6H2O + 14 NaOH + CH3COOH = 2 Co2FeO4 + 14 NaCl + 31 H2O + CH3COH
Al + Cu(NO3)2(aq) = Cu(s) + Al(NO3)3(aq) =>
2 Al + 3 Cu(NO3)2(aq) = 3 Cu(s) + 2 Al(NO3)3(aq)
Na + HPo4 = NaPo4 + H2 =>
2 Na + 2 HPo4 = 2 NaPo4 + H2
Na2 + SO4 + CaNO3 = NaNO3 + Ca2SO4 =>
Na2 + SO4 + 2 CaNO3 = 2 NaNO3 + Ca2SO4
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