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2 H7Al4Si3 = 2 Al4Si3 + 7 H2
C2H5OH + HNO3 = CH3NO3 + CH3OH =>
C2H5OH + HNO3 = CH3NO3 + CH3OH
Cu2(SO4)2 + Na2S = CuS + Na2(SO4) =>
Cu2(SO4)2 + 2 Na2S = 2 CuS + 2 Na2(SO4)
S3 + P4 = S2P4 =>
2 S3 + 3 P4 = 3 S2P4
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
Cu(OH)2 + NH4NO3 = Cu(NO3)2 + NH4OH =>
Cu(OH)2 + 2 NH4NO3 = Cu(NO3)2 + 2 NH4OH
MnO4{-} + Sb{3+} + H3O{+} = Mn{2+} + Sb{5+} + H2O =>
2 MnO4{-} + 5 Sb{3+} + 16 H3O{+} = 2 Mn{2+} + 5 Sb{5+} + 24 H2O
C4H10 + N2O = CO2 + N + H =>
C4H10 + 8 N2O = 4 CO2 + 16 N + 10 H
C20H40O2 + oxygen = CO2 + H2O =>
C20H40O2 + 29 O2 = 20 CO2 + 20 H2O
K3PO4 + AgCIO3 = Ag3PO4 + KCIO3 =>
K3PO4 + 3 AgCIO3 = Ag3PO4 + 3 KCIO3
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
K2Cr2O7 + H2O + H2SO4 = H2CrO4 + K2SO4 =>
K2Cr2O7 + H2O + H2SO4 = 2 H2CrO4 + K2SO4
C2H5OH + KMnO4 + H2SO4 = CH3COOH + MnO2 + K2SO4 + H2 =>
4 C2H5OH + 2 KMnO4 + H2SO4 = 4 CH3COOH + 2 MnO2 + K2SO4 + 5 H2
NaHS + KMnO4 + H2O = H2SO4 + MnO2 + NaOH + KOH =>
3 NaHS + 8 KMnO4 + 7 H2O = 3 H2SO4 + 8 MnO2 + 3 NaOH + 8 KOH
Na3[Cr(oh)6] + Cl2 + NaOH = Na2CrO4 + NaCl + H2O =>
2 Na3[Cr(oh)6] + 39 Cl2 + 96 NaOH = 12 Na2CrO4 + 78 NaCl + 48 H2O
CuCl + NH3 = Cu(NH3)2Cl =>
CuCl + 2 NH3 = Cu(NH3)2Cl
HCOOH + O2 = H2O + CO2 =>
2 HCOOH + O2 = 2 H2O + 2 CO2
NH4Cl + SrSO4 = SrCl + NH4(SO4) =>
NH4Cl + SrSO4 = SrCl + NH4(SO4)
Al2(SO4)3 + H2O = Al(OH)3 + H2SO4 =>
Al2(SO4)3 + 6 H2O = 2 Al(OH)3 + 3 H2SO4
SnI4 + PPh3 = SnI4(PPh3) =>
SnI4 + PPh3 = SnI4(PPh3)
Cu2 + Fe2SO4 = Cu2SO4 + Fe2 =>
Cu2 + Fe2SO4 = Cu2SO4 + Fe2
NaHCO3 + ZnCl2 = NaCl2 + ZnHCO3 =>
NaHCO3 + ZnCl2 = NaCl2 + ZnHCO3
H2O2 + Cr(OH)3 = CrO4{-2} + H2O + H{+} =>
3 H2O2 + 2 Cr(OH)3 = 2 CrO4{-2} + 4 H2O + 4 H{+}
Fe + HCl = FeCl2 + H2 =>
Fe + 2 HCl = FeCl2 + H2
OsO4 + PtCl4 = PtO2 + Os + Cl8 =>
OsO4 + 2 PtCl4 = 2 PtO2 + Os + Cl8
C2H6OH + HCl = C2H6Cl + H2O =>
C2H6OH + HCl = C2H6Cl + H2O
Cu(NO3)2 + NH4OH = NH4 + NO3 + Cu(OH)2 =>
Cu(NO3)2 + 2 NH4OH = 2 NH4 + 2 NO3 + Cu(OH)2
C6H4(NO2)COOH + Zn + NaOH + H2O = C6H4(NH2)COONa + Na2[Zn(OH)4] =>
C6H4(NO2)COOH + 3 Zn + 7 NaOH + 3 H2O = C6H4(NH2)COONa + 3 Na2[Zn(OH)4]
KI(aq) + SnCl4(aq) = SnI4(s) + KCl(aq) =>
4 KI(aq) + SnCl4(aq) = SnI4(s) + 4 KCl(aq)
(CH3)2N2H2 + H2O = (CH3)2(NH3)2 + OH =>
(CH3)2N2H2 + 4 H2O = (CH3)2(NH3)2 + 4 OH
H2OHCl + NaAlO2 = Al(OH)3 + NaCl =>
H2OHCl + NaAlO2 = Al(OH)3 + NaCl
H3PO4 + BaBr2 = HBr + Ba3(PO4)2 =>
2 H3PO4 + 3 BaBr2 = 6 HBr + Ba3(PO4)2
Ba + SO4 = BaS + O2 =>
Ba + SO4 = BaS + 2 O2
CuSO4 + N2H4 + KOH = Cu2O + N2 + K2SO4 + H2O =>
4 CuSO4 + N2H4 + 8 KOH = 2 Cu2O + N2 + 4 K2SO4 + 6 H2O
CH3COOH + C2H5OH = CH3COOC2H5 + H3O =>
4 CH3COOH + 6 C2H5OH = 5 CH3COOC2H5 + 4 H3O
H2SO3{-2} + HCl = S{-2} + H2O + Cl =>
H2SO3{-2} + 4 HCl = S{-2} + 3 H2O + 4 Cl
Al + NH3 + H2O = Al(OH)3 + NH4 =>
Al + 3 NH3 + 3 H2O = Al(OH)3 + 3 NH4
C6H5NO2 + Fe + HCl = C6H5NH2 + FeCl3 + H2O =>
C6H5NO2 + 2 Fe + 6 HCl = C6H5NH2 + 2 FeCl3 + 2 H2O
NaIO3 + HI = I2 + H2O + NaI =>
NaIO3 + 6 HI = 3 I2 + 3 H2O + NaI
CuS + Fe = CuSFe =>
CuS + Fe = CuSFe
H2O + SiO = SiO2 + H2 =>
H2O + SiO = SiO2 + H2
R + A = R3A =>
3 R + A = R3A
Ca + H2SO4 = CaSO4 + H2 =>
Ca + H2SO4 = CaSO4 + H2
KOH + MnO2 + O2 = K2MnO4 + H2O =>
4 KOH + 2 MnO2 + O2 = 2 K2MnO4 + 2 H2O
NaClO3 = NaCl + O2 =>
2 NaClO3 = 2 NaCl + 3 O2
ZnO + K3N = Zn3N2 + K2O =>
3 ZnO + 2 K3N = Zn3N2 + 3 K2O
AlBr3 + K2(CO3) = Al2(CO3)3 + KBr =>
2 AlBr3 + 3 K2(CO3) = Al2(CO3)3 + 6 KBr
PhCHCH2 + KMnO4 + H2SO4 = PhCOOH + K2SO4 + MnSO4 + CO2 + H2O =>
PhCHCH2 + 2 KMnO4 + 3 H2SO4 = PhCOOH + K2SO4 + 2 MnSO4 + CO2 + 4 H2O
CuCl2(aq) + Na2S(aq) = CuS(aq) + ClNa(aq) =>
CuCl2(aq) + Na2S(aq) = CuS(aq) + 2 ClNa(aq)
SO2 + CO2 = SO3 + CO =>
SO2 + CO2 = SO3 + CO
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