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CuS + O2 = SO2 + Cu
H2O + NaBr + KMnO4 = NaBrO3 + KOH + MnO2 =>
H2O + NaBr + 2 KMnO4 = NaBrO3 + 2 KOH + 2 MnO2
H2O + Ba = H2 + BaO =>
H2O + Ba = H2 + BaO
Al + KOH + KNO3 + H2O = K[Al(OH)4] + NH3*H2O =>
8 Al + 5 KOH + 3 KNO3 + 21 H2O = 8 K[Al(OH)4] + 3 NH3*H2O
Pb(NO3)2 + KI(aq) = PbI2(s) + KNO3(aq) =>
Pb(NO3)2 + 2 KI(aq) = PbI2(s) + 2 KNO3(aq)
Sn + H2SO4 = SnO4 + H2S =>
Sn + H2SO4 = SnO4 + H2S
CaCl2 + LiF = CaF2 + ClLi =>
CaCl2 + 2 LiF = CaF2 + 2 ClLi
KBrAgBr = KAgBr2 =>
KBrAgBr = KAgBr2
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
IO + H3O + Co(OH)2 = I2 + Co(OH)3 =>
2 IO + H3O + 3 Co(OH)2 = I2 + 3 Co(OH)3
CH3CH2H + K2CrO7 + H2SO4 = CH3CHOH + Cr2(SO4)3 + K2SO4 + H2O =>
6 CH3CH2H + 2 K2CrO7 + 5 H2SO4 = 6 CH3CHOH + Cr2(SO4)3 + 2 K2SO4 + 8 H2O
BiS = Bi + S =>
BiS = Bi + S
Cu(OH)2 + HClO4 = Cl2CuO8 + H2O =>
Cu(OH)2 + 2 HClO4 = Cl2CuO8 + 2 H2O
LiCN(aq) + CuClO3(aq) = LiClO3(s) + CuCN(aq) =>
LiCN(aq) + CuClO3(aq) = LiClO3(s) + CuCN(aq)
BaCr2O7 + KCl + NaOH = K2CrO4 + H2O + NaCl + BaCrO4 =>
BaCr2O7 + 2 KCl + 2 NaOH = K2CrO4 + H2O + 2 NaCl + BaCrO4
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
Na2O(s) + H2O(l) = NaOH(aq) =>
Na2O(s) + H2O(l) = 2 NaOH(aq)
Cr2O3 + KNO3 + Na2CO2 = Na2CrO4 + CO2 + KNO2 =>
Cr2O3 + 5 KNO3 + 2 Na2CO2 = 2 Na2CrO4 + 2 CO2 + 5 KNO2
MgCO3(NaOH)2 = Mg(OH)2Na2CO3 =>
MgCO3(NaOH)2 = Mg(OH)2Na2CO3
Al + SnCl2 = Al(SnCl2)3 =>
Al + 3 SnCl2 = Al(SnCl2)3
H2PO4{-} + CO3{-2} = HPO4{-2} + HCO3{-} =>
H2PO4{-} + CO3{-2} = HPO4{-2} + HCO3{-}
H2SO3 + AgOH = Ag2SO3 + H2O =>
H2SO3 + 2 AgOH = Ag2SO3 + 2 H2O
Ca3N2 + O2 = CaO + N2O2 =>
2 Ca3N2 + 5 O2 = 6 CaO + 2 N2O2
I{-} + MnO4{-} + H2O = IO3{-} + Mn{+4} + OH{-} =>
I{-} + 2 MnO4{-} + 5 H2O = IO3{-} + 2 Mn{+4} + 10 OH{-}
CH4(g) + S8(g) = CS2(l) + H2S(g) =>
2 CH4(g) + S8(g) = 2 CS2(l) + 4 H2S(g)
FeS + HNO3 = Fe(NO3)3 + S + H2 =>
2 FeS + 6 HNO3 = 2 Fe(NO3)3 + 2 S + 3 H2
Sn(OH)4 + H2SO4 = Sn2(SO4)4 + H2O =>
2 Sn(OH)4 + 4 H2SO4 = Sn2(SO4)4 + 8 H2O
Pb(NO3)2 + KBr = KNO3 + PbBr2 =>
Pb(NO3)2 + 2 KBr = 2 KNO3 + PbBr2
Co2O3 + HCl = CoCl3 + H2O =>
Co2O3 + 6 HCl = 2 CoCl3 + 3 H2O
HCl + CaCO3 = CaCl2 + H2O + CO2 =>
2 HCl + CaCO3 = CaCl2 + H2O + CO2
Bi(NO3)3 = Bi + NO3 =>
Bi(NO3)3 = Bi + 3 NO3
Sn + Ni(NO3)2 = Sn(NO3)4 + Ni =>
Sn + 2 Ni(NO3)2 = Sn(NO3)4 + 2 Ni
Bi(NO3)3 = Bi + NO3 =>
Bi(NO3)3 = Bi + 3 NO3
Ca(ClO)2 + HI = HClO + CaI2 =>
Ca(ClO)2 + 2 HI = 2 HClO + CaI2
Co2O3 + HCl = CoCl3 + H2O =>
Co2O3 + 6 HCl = 2 CoCl3 + 3 H2O
Bi(NO3)3 = Bi + NO3 =>
Bi(NO3)3 = Bi + 3 NO3
NaOH + MnCl2 = Mn(OH)2 + NaCl =>
2 NaOH + MnCl2 = Mn(OH)2 + 2 NaCl
(NH)CO + BaCl = (NH)Cl + BaCO =>
(NH)CO + BaCl = (NH)Cl + BaCO
C14H10O2 + CH4N2O = H2O + C15H12N2O2 =>
C14H10O2 + CH4N2O = H2O + C15H12N2O2
Cu(NO3)2 + HI = CuI + I2 + HNO3 =>
2 Cu(NO3)2 + 4 HI = 2 CuI + I2 + 4 HNO3
CaSO4 + CO2 + NH3 + H2O = CaCO3 + (NH4)2SO4 =>
CaSO4 + CO2 + 2 NH3 + H2O = CaCO3 + (NH4)2SO4
Bi(NO3)3 = Bi2O3 + N2O5 =>
2 Bi(NO3)3 = Bi2O3 + 3 N2O5
Fe + H2CO3 = FeCO3 + H2 =>
Fe + H2CO3 = FeCO3 + H2
Na2S + H2SO4 = Na2SO4 + H2S =>
Na2S + H2SO4 = Na2SO4 + H2S
Pb + (SO4)3 + LiNO3 = Pb(NO3)4 + LiSO4 =>
3 Pb + 4(SO4)3 + 12 LiNO3 = 3 Pb(NO3)4 + 12 LiSO4
Co2O3 + HCl = CoCl3 + H2O =>
Co2O3 + 6 HCl = 2 CoCl3 + 3 H2O
POCl3 + NaOH = NaCl + H3PO4 =>
POCl3 + 3 NaOH = 3 NaCl + H3PO4
Cr2O7{-2} + CH3OH + H{+} = Cr{+3} + HCOOH + H2O =>
2 Cr2O7{-2} + 3 CH3OH + 16 H{+} = 4 Cr{+3} + 3 HCOOH + 11 H2O
Bi(NO3)3 = Bi2O3 + N2O5 =>
2 Bi(NO3)3 = Bi2O3 + 3 N2O5
Fe + H2CO3 = FeCO3 + H2 =>
Fe + H2CO3 = FeCO3 + H2
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