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CS2 + 2 CaO = CO2 + 2 CaS
Cu2O + NaOH + H2O = NaCu(OH)2 =>
Cu2O + 2 NaOH + H2O = 2 NaCu(OH)2
NaHCO3(s) = Na2CO3(s)CO2(g)H2O(g) =>
2 NaHCO3(s) = Na2CO3(s)CO2(g)H2O(g)
Mg4 + O2 = MgO =>
Mg4 + 2 O2 = 4 MgO
N2 + H2 = NH3 = ? =>
N2 + 3 H2 = 2 NH3
NH4Cl + KMnO4 + H2SO4 = MnSO4 + K2SO4 + (NH4)2SO4 + Cl2 + H2O =>
10 NH4Cl + 2 KMnO4 + 8 H2SO4 = 2 MnSO4 + K2SO4 + 5(NH4)2SO4 + 5 Cl2 + 8 H2O
Zn(OH)2 + Ba(OH)2 = Ba[Zn(OH)4] =>
Zn(OH)2 + Ba(OH)2 = Ba[Zn(OH)4]
Mn02 + HBr = MnBr2 + H2 =>
Mn02 + 4 HBr = 2 MnBr2 + 2 H2
FeS2 + O2 = FeS2O =>
2 FeS2 + O2 = 2 FeS2O
B2Br6 + HNO3 = B(NO3)3 + HBr =>
B2Br6 + 6 HNO3 = 2 B(NO3)3 + 6 HBr
H8 = H2 =>
H8 = 4 H2
CuSO4 + NH3 = NH3(SO4) + Cu =>
CuSO4 + NH3 = NH3(SO4) + Cu
BaCl2 + Pb(CH3CO2)2 = Ba(CH3CO2)2 + PbCl2 =>
BaCl2 + Pb(CH3CO2)2 = Ba(CH3CO2)2 + PbCl2
C6H12 + Cl2 = C6H10Cl2 + H2 =>
C6H12 + Cl2 = C6H10Cl2 + H2
Tl + Br2 = Tl2Br3 =>
4 Tl + 3 Br2 = 2 Tl2Br3
Tl + Br2 = TlBr3 =>
2 Tl + 3 Br2 = 2 TlBr3
HCl + HNO2 = NO + H2O + Cl2 =>
2 HCl + 2 HNO2 = 2 NO + 2 H2O + Cl2
Cu + H2O(water) + CO2 + O2 = CuCO3Cu(OH)2 =>
2 Cu + H2O(water) + CO2 + O2 = CuCO3Cu(OH)2
CuO + Al = Cu + AlO3 =>
3 CuO + Al = 3 Cu + AlO3
AgCl(aq) + Zn(s) = ZnCl2(aq) + Ag(s) =>
2 AgCl(aq) + Zn(s) = ZnCl2(aq) + 2 Ag(s)
K + BrO4 = KBrO4 =>
K + BrO4 = KBrO4
Cs + CuSO4 = Cs2SO4 + Cu =>
2 Cs + CuSO4 = Cs2SO4 + Cu
Ba(OH) + H2SO4 = BaHSO4 + H2O =>
Ba(OH) + H2SO4 = BaHSO4 + H2O
KI(Ac) + Br(l) = KBr(Ac) + I =>
KI(Ac) + Br(l) = KBr(Ac) + I
KOH + C2H4O2 = KC + CO2 + H2O =>
8 KOH + 5 C2H4O2 = 8 KC + 2 CO2 + 14 H2O
N2H4 + NaNO2 = NaN3 + H2O =>
N2H4 + NaNO2 = NaN3 + 2 H2O
Zn + CuSO4(aq) = ZnSO4(aq) + Cu =>
Zn + CuSO4(aq) = ZnSO4(aq) + Cu
Al + MgSO4 = Al(SO4)2 + Mg =>
Al + 2 MgSO4 = Al(SO4)2 + 2 Mg
K2CrO4 + KIO4 + KCl + H2O = CrI2 + KOH + Cl2 =>
K2CrO4 + 2 KIO4 + 20 KCl + 12 H2O = CrI2 + 24 KOH + 10 Cl2
CuFeS2 + O2 = SO2 + CuO + FeO =>
CuFeS2 + 3 O2 = 2 SO2 + CuO + FeO
BaI2 + Al = AlI + Ba =>
BaI2 + 2 Al = 2 AlI + Ba
C2H4 + O2 = CO2 + H2O =>
C2H4 + 3 O2 = 2 CO2 + 2 H2O
CrI3 + NH4NO3 = Cr2O3 + I2 + N2 + H2O =>
2 CrI3 + 3 NH4NO3 = Cr2O3 + 3 I2 + 3 N2 + 6 H2O
Pb3P4 + Zn = Zn3P2 + Pb =>
Pb3P4 + 6 Zn = 2 Zn3P2 + 3 Pb
CH3CH2Cl + H2O = CH3CH3O + HCl =>
CH3CH2Cl + H2O = CH3CH3O + HCl
B = B2 =>
2 B = B2
NaHCO2H2O = NaHCO3H2 =>
NaHCO2H2O = NaHCO3H2
NaOHNaH2PO4 = Na2HPO4H2O =>
NaOHNaH2PO4 = Na2HPO4H2O
NiO4 + e + Al2Cl7{-} = NiAl2O4 + AlCl4{-} =>
NiO4 + 6e + 8 Al2Cl7{-} = NiAl2O4 + 14 AlCl4{-}
Fe3O4 + CO = Fe + CO2 =>
Fe3O4 + 4 CO = 3 Fe + 4 CO2
ZnS + AlP = Zn3P2 + Al2S3 =>
3 ZnS + 2 AlP = Zn3P2 + Al2S3
Mn02 + HBr = MnBr2 + H2 =>
Mn02 + 4 HBr = 2 MnBr2 + 2 H2
CaZnO2 + H2SO4 = CaSO4 + ZnSO4 + H2O =>
CaZnO2 + 2 H2SO4 = CaSO4 + ZnSO4 + 2 H2O
Na3N + HCl = NaCl + NH3 =>
Na3N + 3 HCl = 3 NaCl + NH3
(Cr2O7)2{-} + CH3CHOHCH2OH + H{+} = CH3COCOOH + Cr3{+} + H2O =>
18(Cr2O7)2{-} + 77 CH3CHOHCH2OH + 42 H{+} = 77 CH3COCOOH + 24 Cr3{+} + 175 H2O
C6H6 + O2 = CO2 + H2O =>
2 C6H6 + 15 O2 = 12 CO2 + 6 H2O
Al + NaClO = Na + O2 + AlCl3 =>
2 Al + 6 NaClO = 6 Na + 3 O2 + 2 AlCl3
Pb(NO2)2Na2CrO4 = PbCrO4Na2(NO2)2 =>
Pb(NO2)2Na2CrO4 = PbCrO4Na2(NO2)2
H2TeO3 + SnCl2 + HCl = SnTe + SnCl4 + H2O =>
H2TeO3 + 4 SnCl2 + 4 HCl = SnTe + 3 SnCl4 + 3 H2O
FeCl2 + HNO3 + HCl = FeCl3 + H2O + NO =>
3 FeCl2 + HNO3 + 3 HCl = 3 FeCl3 + 2 H2O + NO
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