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H2Se + Ca = H2 + SeCa
OH{-} + MnO4{-} = MnO4{2-} + H2O + O2 =>
4 OH{-} + 4 MnO4{-} = 4 MnO4{2-} + 2 H2O + O2
Cu{+} + OH{-} = Cu2O + H2O =>
2 Cu{+} + 2 OH{-} = Cu2O + H2O
Cr2(SO4)3 + Mg(OH)2 = Cr2(OH)2 + Mg(SO4)3 =>
Cr2(SO4)3 + Mg(OH)2 = Cr2(OH)2 + Mg(SO4)3
C5H13O3 + O2 = CO2 + H2O =>
4 C5H13O3 + 27 O2 = 20 CO2 + 26 H2O
C7H17 + O2 = CO2 + H2O =>
4 C7H17 + 45 O2 = 28 CO2 + 34 H2O
Na2S + K2Cr2O7 + H2SO4 = Na2SO4 + Cr2(SO4)3 + K2SO4 + H2O =>
3 Na2S + 4 K2Cr2O7 + 16 H2SO4 = 3 Na2SO4 + 4 Cr2(SO4)3 + 4 K2SO4 + 16 H2O
K4Fe(CN)6 + KMnO4 + H2SO4 = KHSO4 + Fe2(SO4)3 + MnSO4 + NO3 + CO2 + H2O =>
10 K4Fe(CN)6 + 134 KMnO4 + 323 H2SO4 = 174 KHSO4 + 5 Fe2(SO4)3 + 134 MnSO4 + 60 NO3 + 60 CO2 + 236 H2O
S + O2 = SO2 =>
S + O2 = SO2
Cu + KHCO3 = Cu(HCO3)2 + K =>
Cu + 2 KHCO3 = Cu(HCO3)2 + 2 K
AlAl + HCl = AlCl3 + H2 =>
AlAl + 6 HCl = 2 AlCl3 + 3 H2
C6H12O5 + O2 = C2H6O + CO2 =>
2 C6H12O5 + O2 = 4 C2H6O + 4 CO2
Zn(s) + HCl(ac) = ZnCl2(s) + H2(g) =>
Zn(s) + 2 HCl(ac) = ZnCl2(s) + H2(g)
Mg + Fl2 = MgFl2 =>
Mg + Fl2 = MgFl2
NaOH + (NH4)2SO4(s) = Na2SO4 + NH3(g) + H2O(l) =>
2 NaOH + (NH4)2SO4(s) = Na2SO4 + 2 NH3(g) + 2 H2O(l)
KClO3 = KCl(s) + O2(s) =>
2 KClO3 = 2 KCl(s) + 3 O2(s)
Al + CuO = Al2O3 + Cu =>
2 Al + 3 CuO = Al2O3 + 3 Cu
H2 + FeCl3 = Fe + HCl =>
3 H2 + 2 FeCl3 = 2 Fe + 6 HCl
Ga + Se = Ga2Se3 =>
2 Ga + 3 Se = Ga2Se3
CaCO3 + Al2S3 = Al2(CO3)3 + CaS =>
3 CaCO3 + Al2S3 = Al2(CO3)3 + 3 CaS
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
MgSO4*8H2O = MgSO4 + H2O =>
MgSO4*8H2O = MgSO4 + 8 H2O
NH4NO3 = N2O + H2O =>
NH4NO3 = N2O + 2 H2O
CH3COOK + HBr = CH3COOH + KBr =>
CH3COOK + HBr = CH3COOH + KBr
H{+} + MnO4{-} + HCO2{-} = MnO2 + H2O + CO2 =>
5 H{+} + 2 MnO4{-} + 3 HCO2{-} = 2 MnO2 + 4 H2O + 3 CO2
PbO + H3PO4 = Pb(H2PO4)2 + H2O =>
PbO + 2 H3PO4 = Pb(H2PO4)2 + H2O
H2SO4(aq) + CaCO3(aq) = CaSO4 + H2O(l) + CO2(g) =>
H2SO4(aq) + CaCO3(aq) = CaSO4 + H2O(l) + CO2(g)
KOH + RbOH = KRb + H2O2 =>
KOH + RbOH = KRb + H2O2
PrCl3(H2O)7 + Na2MoO4(H2O)2 = Pr2(MoO4)3 + NaCl + H2O =>
2 PrCl3(H2O)7 + 3 Na2MoO4(H2O)2 = Pr2(MoO4)3 + 6 NaCl + 20 H2O
AgNO3 + NaCl = AgCl + NaNO3 =>
AgNO3 + NaCl = AgCl + NaNO3
C3H18(l) + O2 = CO2(g) + H2O(g) =>
2 C3H18(l) + 15 O2 = 6 CO2(g) + 18 H2O(g)
HI + NH3 = NH3I + H =>
HI + NH3 = NH3I + H
Pb + H2O = PbOH + H2 =>
2 Pb + 2 H2O = 2 PbOH + H2
Fe2O3 + Al = Fe(s) + Al2O3(s) =>
Fe2O3 + 2 Al = 2 Fe(s) + Al2O3(s)
O2 + Cl2 = ClO4 =>
4 O2 + Cl2 = 2 ClO4
Na + MgCl2 = Mg + NaCl =>
2 Na + MgCl2 = Mg + 2 NaCl
Na3N + H2SO4 = Na2SO4 + H2 + N2 =>
2 Na3N + 3 H2SO4 = 3 Na2SO4 + 3 H2 + N2
H{+} + Cr2O2 + C2H5OH = Cr{+} + CHO + H2O =>
6 H{+} + 3 Cr2O2 + C2H5OH = 6 Cr{+} + 2 CHO + 5 H2O
C2H4O + NH3 = C6H15NO3 =>
3 C2H4O + NH3 = C6H15NO3
BaCl2 + SrCO3 = SrCl2 + BaCO3 =>
BaCl2 + SrCO3 = SrCl2 + BaCO3
C3H8 + O = CO2 + H2O =>
C3H8 + 10 O = 3 CO2 + 4 H2O
Cr2O7{2-} + Cd + H{+} = Cr{3+} + Cd{2+} + H2O =>
Cr2O7{2-} + 3 Cd + 14 H{+} = 2 Cr{3+} + 3 Cd{2+} + 7 H2O
HBr + Fe = HFe + Br =>
HBr + Fe = HFe + Br
Sn + H2O + NaOH = Na2SnO3 + H2 =>
Sn + H2O + 2 NaOH = Na2SnO3 + 2 H2
ArCl2 + KOH = Ar(OH)2 + KCl =>
ArCl2 + 2 KOH = Ar(OH)2 + 2 KCl
(NH4)2(SO4) + NaCl = Na2SO4 + (NH4)2Cl2 =>
(NH4)2(SO4) + 2 NaCl = Na2SO4 + (NH4)2Cl2
CH4COOH(aq) + H2O(l) = HC2H3O2(aq) + H3O(aq) =>
CH4COOH(aq) + H2O(l) = HC2H3O2(aq) + H3O(aq)
Pb(NO3)2 + ZnSO4 = Pb(SO4) + Zn(NO3)2 =>
Pb(NO3)2 + ZnSO4 = Pb(SO4) + Zn(NO3)2
C18H35 + O2 = CO2 + H2O =>
4 C18H35 + 107 O2 = 72 CO2 + 70 H2O
Al + HCl = AlCl3 + H2 =>
2 Al + 6 HCl = 2 AlCl3 + 3 H2
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