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2 Bi2S3 + 9 O2 = 2 Bi2O3 + 6 SO2
Hg2Cl2 + SnCl2 = Hg + SnCl4 =>
Hg2Cl2 + SnCl2 = 2 Hg + SnCl4
FeSO4 + CuCl3 = FeCl2 + Cu2(SO4)3 =>
3 FeSO4 + 2 CuCl3 = 3 FeCl2 + Cu2(SO4)3
Bi + F2 = BiF3 =>
2 Bi + 3 F2 = 2 BiF3
BiCl3 + H2S = Bi2S3 + HCl =>
2 BiCl3 + 3 H2S = Bi2S3 + 6 HCl
NaF(aq) + HBr(aq) = NaBr(aq) + HF(aq) =>
NaF(aq) + HBr(aq) = NaBr(aq) + HF(aq)
HgO + Cl2 = HgCl + O2 =>
2 HgO + Cl2 = 2 HgCl + O2
Bi2S3 + HCl = BiCl3 + H2S =>
Bi2S3 + 6 HCl = 2 BiCl3 + 3 H2S
S2O3{2-} + Sb2O5 + H{+} + H2O = SbO + H2SO3 =>
3 S2O3{2-} + 2 Sb2O5 + 6 H{+} + 3 H2O = 4 SbO + 6 H2SO3
Hg2Cl2 + SnCl2 = Hg + SnCl4 =>
Hg2Cl2 + SnCl2 = 2 Hg + SnCl4
K3PO4 + Sr(NO3)2 = Sr3(PO4)2 + KNO3 =>
2 K3PO4 + 3 Sr(NO3)2 = Sr3(PO4)2 + 6 KNO3
Ni(NO3)2 + NaOH = Ni + NaOH(NO3) =>
Ni(NO3)2 + 2 NaOH = Ni + 2 NaOH(NO3)
Bi + Cl2 = BiCl3 =>
2 Bi + 3 Cl2 = 2 BiCl3
S + O2 = SO2 =>
S + O2 = SO2
MnCl2*4H2O + LiOH = MnO + LiCl + H2O =>
MnCl2*4H2O + 2 LiOH = MnO + 2 LiCl + 5 H2O
FeS2 + O2 = Fe2O3 + SO2 =>
4 FeS2 + 11 O2 = 2 Fe2O3 + 8 SO2
MnO4 + NaI + H2SO4 = I2 + MnSO4 + NaSO4 + H2O =>
2 MnO4 + 6 NaI + 8 H2SO4 = 3 I2 + 2 MnSO4 + 6 NaSO4 + 8 H2O
KMnO4 + (COONa)2 + H2SO4 = K2SO4 + MnSO4 + Na2SO4 + H2O + CO2 =>
2 KMnO4 + 5(COONa)2 + 8 H2SO4 = K2SO4 + 2 MnSO4 + 5 Na2SO4 + 8 H2O + 10 CO2
BiCl3 + H2S = Bi2S3 + HCl =>
2 BiCl3 + 3 H2S = Bi2S3 + 6 HCl
Cu + OH = Cu(OH)2 =>
Cu + 2 OH = Cu(OH)2
Ca + O2 = CaO =>
2 Ca + O2 = 2 CaO
C + AgNO3 = C(NO3)2 + Ag =>
C + 2 AgNO3 = C(NO3)2 + 2 Ag
(NH4)2Cr2O7 = Cr2O3 + N2 + H2O =>
(NH4)2Cr2O7 = Cr2O3 + N2 + 4 H2O
SnO2 + H2 = Sn + H2O =>
SnO2 + 2 H2 = Sn + 2 H2O
KMnO4 + Na2SO3 + H2O = K2SO4 + Na2SO4 + MnSO4 + NaOH =>
2 KMnO4 + 5 Na2SO3 + 3 H2O = K2SO4 + 2 Na2SO4 + 2 MnSO4 + 6 NaOH
Bi + HNO3 = Bi(NO3)3 + NO + H2O =>
Bi + 4 HNO3 = Bi(NO3)3 + NO + 2 H2O
Fe(OH)3 + H2SO4 = Fe2(SO4)3 + H2O(s) =>
2 Fe(OH)3 + 3 H2SO4 = Fe2(SO4)3 + 6 H2O(s)
Bi2S3 + HCl = BiCl3 + H2S =>
Bi2S3 + 6 HCl = 2 BiCl3 + 3 H2S
Pb12O19 = Pb12O17 + O2 =>
Pb12O19 = Pb12O17 + O2
SnO2 + C = Sn + CO =>
SnO2 + 2 C = Sn + 2 CO
Bi + Br2 = BiBr3 =>
2 Bi + 3 Br2 = 2 BiBr3
Bi2S3 + O2 = Bi2O3 + SO2 =>
2 Bi2S3 + 9 O2 = 2 Bi2O3 + 6 SO2
Na2SO3 + NaMnO4 + H2O = Na2SO4 + MnO2 + NaOH =>
3 Na2SO3 + 2 NaMnO4 + H2O = 3 Na2SO4 + 2 MnO2 + 2 NaOH
Bi + H2SO4 = Bi2(SO4)3 + SO2 + H2O =>
2 Bi + 6 H2SO4 = Bi2(SO4)3 + 3 SO2 + 6 H2O
Ca(OH)2 + Zn(OH)2 = CaZnO2 + H2O =>
Ca(OH)2 + Zn(OH)2 = CaZnO2 + 2 H2O
BiCl3 + H2S = Bi2S3 + HCl =>
2 BiCl3 + 3 H2S = Bi2S3 + 6 HCl
XeF2 + H2O = HF + O2 + Xe =>
2 XeF2 + 2 H2O = 4 HF + O2 + 2 Xe
C + F2 = CF5 =>
2 C + 5 F2 = 2 CF5
C7H7Cl + NaOH + H2O = C6H6O + NaCl + CH4 =>
10 C7H7Cl + 10 NaOH + H2O = 11 C6H6O + 10 NaCl + 4 CH4
Pb(NO3)2() + Na2S() = PbS() + Na(NO3)() =>
Pb(NO3)2() + Na2S() = PbS() + 2 Na(NO3)()
NaCl + HOH = NaOH + H2 + Cl2 =>
2 NaCl + 2 HOH = 2 NaOH + H2 + Cl2
CH3COOH + K = CHCOOK + H2 =>
2 CH3COOH + 2 K = 2 CHCOOK + 3 H2
Cu(NO3)2 + H2O + NaOH = H3N2O6 + Cu(OH)2 + NaO =>
Cu(NO3)2 + 2 H2O + NaOH = H3N2O6 + Cu(OH)2 + NaO
(FeCl3)6(H2O) + CH3COCH2COCH3 = Fe(CH3COCHCOCH3)3 + HCl + H2O =>
(FeCl3)6(H2O) + 18 CH3COCH2COCH3 = 6 Fe(CH3COCHCOCH3)3 + 18 HCl + H2O
SnO2 + H2 = Sn + H2O =>
SnO2 + 2 H2 = Sn + 2 H2O
Co(NO3)2 + Al(OH)3 = Co(OH)2 + Al(NO3)3 =>
3 Co(NO3)2 + 2 Al(OH)3 = 3 Co(OH)2 + 2 Al(NO3)3
Bi2S3 + HCl = BiCl3 + H2S =>
Bi2S3 + 6 HCl = 2 BiCl3 + 3 H2S
BaS + K3PO4 = K3S + BaPO4 =>
BaS + K3PO4 = K3S + BaPO4
Ca + O2 = CaO =>
2 Ca + O2 = 2 CaO
Mg + CH3COOH = Mg(CH3COO)2 + H2 =>
Mg + 2 CH3COOH = Mg(CH3COO)2 + H2
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