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Cu + 2 H2SO4 = CuSO4 + 2 H2O + SO2
Cu + H(NO3) = Cu(NO3)2 + N2O + H2O =>
4 Cu + 10 H(NO3) = 4 Cu(NO3)2 + N2O + 5 H2O
KMrO4 + K2SO3 + H2SO4 = MrSO4 + K2SO4 + H2O =>
2 KMrO4 + 5 K2SO3 + 3 H2SO4 = 2 MrSO4 + 6 K2SO4 + 3 H2O
(NH4)2SO4(aq) + Ca(OH)2(aq) = CaSO4(s) + NH3(g) + H2O(l) =>
(NH4)2SO4(aq) + Ca(OH)2(aq) = CaSO4(s) + 2 NH3(g) + 2 H2O(l)
S3 + F2 = SF6 =>
S3 + 9 F2 = 3 SF6
Ba + H3PO4 = Ba3PO4 + H2 =>
6 Ba + 2 H3PO4 = 2 Ba3PO4 + 3 H2
Bi(NO3)3 + Al2(SO4)3 = Bi2(SO4)3 + Al(NO3)3 =>
2 Bi(NO3)3 + Al2(SO4)3 = Bi2(SO4)3 + 2 Al(NO3)3
KClO3 = KCl + O2 =>
2 KClO3 = 2 KCl + 3 O2
Mg + O2 = MgO =>
2 Mg + O2 = 2 MgO
Al + MnO2 = Al2O3 + Mn =>
4 Al + 3 MnO2 = 2 Al2O3 + 3 Mn
NaNO2 + KI + HCl = I2 + NO + NaCl + KCl + H2O =>
2 NaNO2 + 2 KI + 4 HCl = I2 + 2 NO + 2 NaCl + 2 KCl + 2 H2O
Al2(SO4)3(aq) + AgNO3(aq) = Ag2(SO4)(s) + Al(NO3)3 =>
Al2(SO4)3(aq) + 6 AgNO3(aq) = 3 Ag2(SO4)(s) + 2 Al(NO3)3
H3O{+} + Cr2O7{2-} + C2H5OH = Cr{3+} + C2H4O + H2O =>
8 H3O{+} + Cr2O7{2-} + 3 C2H5OH = 2 Cr{3+} + 3 C2H4O + 15 H2O
Br2 + MnO2 + OH{-} = Br{-} + MnO4{-} + H2O =>
3 Br2 + 2 MnO2 + 8 OH{-} = 6 Br{-} + 2 MnO4{-} + 4 H2O
Fe + O2 = Fe2O3 =>
4 Fe + 3 O2 = 2 Fe2O3
H2 + NO = H2O + N2 =>
2 H2 + 2 NO = 2 H2O + N2
K2Cr2O7 + Zn + HCl + NaOAc*3H2O = [Cr(OAc)2]2*2H2O + ZnCl2 + NaCl + KCl + H2O =>
K2Cr2O7 + 4 Zn + 14 HCl + 4 NaOAc*3H2O = [Cr(OAc)2]2*2H2O + 4 ZnCl2 + 4 NaCl + 2 KCl + 17 H2O
H3CCOOH + H3CCOOK = HK + H3CCOO =>
H3CCOOH + H3CCOOK = HK + 2 H3CCOO
Cu(s) + AgNO3(ag) = Ag(s) + Cu(NO3)2(aq) =>
Cu(s) + 2 AgNO3(ag) = 2 Ag(s) + Cu(NO3)2(aq)
PbO2 + Cr2S3 + H2SO4 = PbSO4 + H2Cr2O7 + H2O =>
15 PbO2 + Cr2S3 + 12 H2SO4 = 15 PbSO4 + H2Cr2O7 + 11 H2O
MnO2 + KI + H2SO4 = K2SO4 + MnSO4 + I2 + H2O =>
MnO2 + 2 KI + 2 H2SO4 = K2SO4 + MnSO4 + I2 + 2 H2O
GaS + FeP = FeS + GaP =>
GaS + FeP = FeS + GaP
TiCl4(l) + H2O(l) = HCl(g) + TiO2(s) =>
TiCl4(l) + 2 H2O(l) = 4 HCl(g) + TiO2(s)
Er + S = ErS =>
Er + S = ErS
CuSO4*5H2O(s) = CuSO4(aq) + H2O(l) =>
CuSO4*5H2O(s) = CuSO4(aq) + 5 H2O(l)
BaCrO4 + HCl = BaCl2 + Cl2 + CrCl3 + H2O =>
2 BaCrO4 + 16 HCl = 2 BaCl2 + 3 Cl2 + 2 CrCl3 + 8 H2O
BaCl2 + Na2SO4 = BaSO4 + NaCl =>
BaCl2 + Na2SO4 = BaSO4 + 2 NaCl
C2O2{2-} + HNO3 + H{+} = CO2 + NO + H2O =>
C2O2{2-} + 2 HNO3 + 2 H{+} = 2 CO2 + 2 NO + 2 H2O
(NH4)2C2O2 + H2O = H2NH4 + CO2 =>
(NH4)2C2O2 + 2 H2O = 2 H2NH4 + 2 CO2
Fe + O2 = Fe3O4 =>
3 Fe + 2 O2 = Fe3O4
C6H12 + H2O = C6H13OH =>
C6H12 + H2O = C6H13OH
Zn + SO2 = Zn2S2O4 =>
2 Zn + 2 SO2 = Zn2S2O4
(NH4)2S + NaOH = NH4OH + Na2S =>
(NH4)2S + 2 NaOH = 2 NH4OH + Na2S
C3H7 + Na = C3H5Na + H2 =>
C3H7 + Na = C3H5Na + H2
C5H11 + O2 = CO2 + H2O =>
4 C5H11 + 31 O2 = 20 CO2 + 22 H2O
Li + O2 = Li2O =>
4 Li + O2 = 2 Li2O
CrCl3 + KMnO4 + H2O + KCl = K2Cr2O7 + MnCl2 + HCl =>
10 CrCl3 + 6 KMnO4 + 11 H2O + 4 KCl = 5 K2Cr2O7 + 6 MnCl2 + 22 HCl
Al + MnO2 = Al2O3 + Mn =>
4 Al + 3 MnO2 = 2 Al2O3 + 3 Mn
Ca(OH)2 + HNO3 = Ca(NO3)2 + H2O =>
Ca(OH)2 + 2 HNO3 = Ca(NO3)2 + 2 H2O
CH4 + H2O = CO + H2 =>
CH4 + H2O = CO + 3 H2
Ca + I = Ca2I =>
2 Ca + I = Ca2I
SiO2 + H2F2 = SiF4 + H2O =>
SiO2 + 2 H2F2 = SiF4 + 2 H2O
HgS + HCl + KI = K4[HgI6] + KCl + H2S =>
HgS + 2 HCl + 6 KI = K4[HgI6] + 2 KCl + H2S
Sb + LiMnO4 + H2SO4 = Li2SO4 + MnSO4 + Sb2O3 + H2O =>
10 Sb + 6 LiMnO4 + 9 H2SO4 = 3 Li2SO4 + 6 MnSO4 + 5 Sb2O3 + 9 H2O
C7H6O + MnO4{-} + H2O = C7H6O2 + MnO2 + OH{-} =>
3 C7H6O + 2 MnO4{-} + H2O = 3 C7H6O2 + 2 MnO2 + 2 OH{-}
Ar + NH3 = Ar(NH3)4 =>
Ar + 4 NH3 = Ar(NH3)4
NaH + OH = ONaH2 =>
NaH + OH = ONaH2
FeS + LiOH = FeOH + LiS =>
FeS + LiOH = FeOH + LiS
FeSO4 + H2SO4 + NH4SCN + H2O2 = Fe(SCN)6 + H2NH4(SO4)2 + H2O =>
FeSO4 + 11 H2SO4 + 6 NH4SCN + 5 H2O2 = Fe(SCN)6 + 6 H2NH4(SO4)2 + 10 H2O
KHSO4 + NaOH = H2O + K2SO4 + Na2SO4 =>
2 KHSO4 + 2 NaOH = 2 H2O + K2SO4 + Na2SO4
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