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2 H + S = H2S
K2Cr2O7 + C2H5OH + H2SO4 = Cr2(SO4)3 + K2SO4 + CHCOOH + H2O =>
K2Cr2O7 + C2H5OH + 4 H2SO4 = Cr2(SO4)3 + K2SO4 + CHCOOH + 6 H2O
NH3 + H2O + CO2 = NCH5O3 =>
NH3 + H2O + CO2 = NCH5O3
Cr2(SO4)3 + KBrO3 + KOH = KBr + K2CrO4 + K2SO4 + H2O =>
Cr2(SO4)3 + KBrO3 + 10 KOH = KBr + 2 K2CrO4 + 3 K2SO4 + 5 H2O
C2H2Cl4 + Ca(OH)2 = C2HCl3 + CaCl2 + H2O =>
2 C2H2Cl4 + Ca(OH)2 = 2 C2HCl3 + CaCl2 + 2 H2O
Ca3(PO4)2 + H3PO4 = Ca(H2PO4)2 =>
Ca3(PO4)2 + 4 H3PO4 = 3 Ca(H2PO4)2
PbSO4 = PbSO3 + O2 =>
2 PbSO4 = 2 PbSO3 + O2
Zn(CH3COO)2 + NaOH = Zn(OH)2 + Na(CH3COO) =>
Zn(CH3COO)2 + 2 NaOH = Zn(OH)2 + 2 Na(CH3COO)
AlBr3 + Fe2O3 = Al2O3 + FeBr3 =>
2 AlBr3 + Fe2O3 = Al2O3 + 2 FeBr3
Cl2 + Mg3P2 = Mg2Cl2 + P =>
3 Cl2 + 2 Mg3P2 = 3 Mg2Cl2 + 4 P
Na + F3Cl2 = F2Na + Cl2 =>
3 Na + 2 F3Cl2 = 3 F2Na + 2 Cl2
KOH + Hg2Cl2 + KH2PO2 = KCl + Hg + K3PO4 + H2O =>
6 KOH + 2 Hg2Cl2 + KH2PO2 = 4 KCl + 4 Hg + K3PO4 + 4 H2O
Fe2O3(s) + Al(s) = Fe(s) + AlO2(s) =>
2 Fe2O3(s) + 3 Al(s) = 4 Fe(s) + 3 AlO2(s)
Li2O + N2 = NO2 + Li =>
4 Li2O + N2 = 2 NO2 + 8 Li
Pb(NO3)2 + NaCl = PbCl2 + NaNO3 =>
Pb(NO3)2 + 2 NaCl = PbCl2 + 2 NaNO3
HI + KHSO3 = SO2 + H2O + KI =>
HI + KHSO3 = SO2 + H2O + KI
NH3 + H3PO4 = NH4PO4 + H2 =>
NH3 + H3PO4 = NH4PO4 + H2
C6H5 + Br2 = C6H5Br =>
2 C6H5 + Br2 = 2 C6H5Br
SO2 + BaCl2 = BaSO2 + Cl2 =>
SO2 + BaCl2 = BaSO2 + Cl2
Br + O2 = Br2O7 =>
4 Br + 7 O2 = 2 Br2O7
H2SiCl2 + H2O = H8Si4O4 + HCl =>
4 H2SiCl2 + 4 H2O = H8Si4O4 + 8 HCl
NH4NO3 + NaCl = NH4Cl + NaNO3 =>
NH4NO3 + NaCl = NH4Cl + NaNO3
HClO3 + Ba(NO3)2 = HNO3 + Ba(ClO3)2 =>
2 HClO3 + Ba(NO3)2 = 2 HNO3 + Ba(ClO3)2
KCIO4 + KCI = KCIO3 =>
3 KCIO4 + KCI = 4 KCIO3
K3PO4 + Ca(NO3)2 = Ca3(PO4)2 + KNO3 =>
2 K3PO4 + 3 Ca(NO3)2 = Ca3(PO4)2 + 6 KNO3
Al + HCl = AlCl3 + H2 =>
2 Al + 6 HCl = 2 AlCl3 + 3 H2
AlBr3 + Na2S + H2O = H2S + Al(OH)3 + NaBr =>
2 AlBr3 + 3 Na2S + 6 H2O = 3 H2S + 2 Al(OH)3 + 6 NaBr
MgBr2 + H2SO4 = H2Br2 + MgSO4 =>
MgBr2 + H2SO4 = H2Br2 + MgSO4
Fe{3+} + S{2-} = Fe + S{6+} =>
8 Fe{3+} + 3 S{2-} = 8 Fe + 3 S{6+}
K3PO4 + Ca(NO3)2 = Ca3(PO4)2 + KNO3 =>
2 K3PO4 + 3 Ca(NO3)2 = Ca3(PO4)2 + 6 KNO3
NaBrO3 + KBr + HCl = Br2 + H2O + NaCl + KCl =>
NaBrO3 + 5 KBr + 6 HCl = 3 Br2 + 3 H2O + NaCl + 5 KCl
NaHCO3 + H3O = Na + H2O + CO2 =>
NaHCO3 + H3O = Na + 2 H2O + CO2
KOH + HgCl2 = HgO + KCl + H2O =>
2 KOH + HgCl2 = HgO + 2 KCl + H2O
Er(OH)3 + H{+} = Er{3+} + H2O =>
Er(OH)3 + 3 H{+} = Er{3+} + 3 H2O
C2H5OH + O2 = CO2 + H2O =>
C2H5OH + 3 O2 = 2 CO2 + 3 H2O
H2O2 = H2O + O2 =>
2 H2O2 = 2 H2O + O2
(NH4)2CO3 + Al2(NO3)3 = Al2(CO3)3 + (NH4)2NO3 =>
3(NH4)2CO3 + Al2(NO3)3 = Al2(CO3)3 + 3(NH4)2NO3
K3PO4 + Ca(NO3)2 = Ca3(PO4)2 + KNO3 =>
2 K3PO4 + 3 Ca(NO3)2 = Ca3(PO4)2 + 6 KNO3
Ca + N2 = Ca3N2 =>
3 Ca + N2 = Ca3N2
K + B2O3 = K2O + B =>
6 K + B2O3 = 3 K2O + 2 B
HNO3 + Ba(OH)2 = Ba(NO3)2 + H2O =>
2 HNO3 + Ba(OH)2 = Ba(NO3)2 + 2 H2O
Pb(NO3)2 + K4Fe(CN)6 = Pb(Fe(CN)6)2 + K4NO3 =>
Pb(NO3)2 + 2 K4Fe(CN)6 = Pb(Fe(CN)6)2 + 2 K4NO3
Na2SiO3 + Ca(NO3)2 = Na(NO3)2 + Ca2(SiO3) =>
Na2SiO3 + 2 Ca(NO3)2 = 2 Na(NO3)2 + Ca2(SiO3)
Cr(OH)3 + NaOH = Na3CrO3 + H2O =>
Cr(OH)3 + 3 NaOH = Na3CrO3 + 3 H2O
Zn + HCl = ZnCl2 + H2 =>
Zn + 2 HCl = ZnCl2 + H2
Mg(NO3)2 + Be = Be(NO3)2 + Mg =>
Mg(NO3)2 + Be = Be(NO3)2 + Mg
Al + Br2 = AlBr3 =>
2 Al + 3 Br2 = 2 AlBr3
AlBr3 + Fe2O3 = Al2O3 + FeBr3 =>
2 AlBr3 + Fe2O3 = Al2O3 + 2 FeBr3
HCl + Fe + O2 = FeCl2 + H2O =>
4 HCl + 2 Fe + O2 = 2 FeCl2 + 2 H2O
FeS2 + O2 = Fe2O3 + SO2 =>
4 FeS2 + 11 O2 = 2 Fe2O3 + 8 SO2
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