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2 K(s) + H2(g) = 2 KH(s)
Na2S + MnCl2 = Mn2S + NaCl2 =>
Na2S + 2 MnCl2 = Mn2S + 2 NaCl2
Silicontetrachloride = silicon + chlorine =>
SiCl4 = Si + 2 Cl2
K2[Ge(OH)4] = K2[Ge(OH)6] + Ge + KOH =>
2 K2[Ge(OH)4] = K2[Ge(OH)6] + Ge + 2 KOH
K3MnO4 + H2O = KMnO4 + MnO2 + KOH =>
3 K3MnO4 + 4 H2O = KMnO4 + 2 MnO2 + 8 KOH
Zn + H2SO4 = ZnSO4 + ZnS + H2O =>
4 Zn + 4 H2SO4 = 3 ZnSO4 + ZnS + 4 H2O
K2CO3(aq) + BaCl2(aq) = KCl2(aq) + Ba2CO3(s) =>
K2CO3(aq) + 2 BaCl2(aq) = 2 KCl2(aq) + Ba2CO3(s)
BaSO4 + O2 = BaO2 + SO3 =>
2 BaSO4 + O2 = 2 BaO2 + 2 SO3
X + O2 = X4O10 =>
4 X + 5 O2 = X4O10
SO2 + H2O = H2SO3 =>
SO2 + H2O = H2SO3
Co2O3(s) = Co + O2 =>
2 Co2O3(s) = 4 Co + 3 O2
AgNO3 + Cu(NO3)2 = Ag(NO3)2 + CuNO3 =>
AgNO3 + Cu(NO3)2 = Ag(NO3)2 + CuNO3
KNa = K3 + Na5 =>
15 KNa = 5 K3 + 3 Na5
AgHg + NaI = AgI + HgI2 + Na =>
AgHg + 3 NaI = AgI + HgI2 + 3 Na
N2 + Cr = CrN3 =>
3 N2 + 2 Cr = 2 CrN3
AuF3 + K = KF + Au =>
AuF3 + 3 K = 3 KF + Au
Cu + HCl + O2 = CuCl2 + H2O =>
2 Cu + 4 HCl + O2 = 2 CuCl2 + 2 H2O
HC2H3O2 + LiHSO4 = LiCH3SO2 + H2O + CO2 =>
5 HC2H3O2 + 4 LiHSO4 = 4 LiCH3SO2 + 6 H2O + 6 CO2
AlCl3 + KOH = Al(OH)3 + KCl =>
AlCl3 + 3 KOH = Al(OH)3 + 3 KCl
C5H5N + O2 = CO2 + H2O + NO2 =>
4 C5H5N + 29 O2 = 20 CO2 + 10 H2O + 4 NO2
KMnO4 + HCl + CH3OH = MnCl2 + CO2 + KCl + H2O =>
6 KMnO4 + 18 HCl + 5 CH3OH = 6 MnCl2 + 5 CO2 + 6 KCl + 19 H2O
FeCl2 + NaOH = NaCl + Fe + OH =>
FeCl2 + 2 NaOH = 2 NaCl + Fe + 2 OH
Na3[Cr(OH)6] + FeCl3 = Fe(OH)3 + Cr(OH)3 + NaCl =>
Na3[Cr(OH)6] + FeCl3 = Fe(OH)3 + Cr(OH)3 + 3 NaCl
KBr + HCN = KCN + HBr =>
KBr + HCN = KCN + HBr
CrBr3 + Cl = Cr(Cl)3 + Br =>
CrBr3 + 3 Cl = Cr(Cl)3 + 3 Br
H2 + K2Cr2O7 = K2CrO4 + Cr2O3 + H2O =>
3 H2 + 2 K2Cr2O7 = 2 K2CrO4 + Cr2O3 + 3 H2O
CuS + AgN03 = Cu(N03)2 + Ag2S =>
CuS + 2 AgN03 = Cu(N03)2 + Ag2S
CH + CO = C2 + H2O =>
4 CH + 2 CO = 3 C2 + 2 H2O
CuSO4(aq) + CoCl2(aq) = CuCl2(aq) + CoSO4(aq) =>
CuSO4(aq) + CoCl2(aq) = CuCl2(aq) + CoSO4(aq)
Na2S + NaOH + KMnO4 = Na2MnO4 + K2MnO4 + Na2SO4 + H2O =>
Na2S + 8 NaOH + 8 KMnO4 = 4 Na2MnO4 + 4 K2MnO4 + Na2SO4 + 4 H2O
Na2S + HNO3 = Na2NO3 + SH =>
Na2S + HNO3 = Na2NO3 + SH
AlF3 + NaBr = AlBr3 + NaF =>
AlF3 + 3 NaBr = AlBr3 + 3 NaF
SiH4(g) + O2(g) = SiO2(g) + H2O(l) =>
SiH4(g) + 2 O2(g) = SiO2(g) + 2 H2O(l)
AgNO3(aq) + Mg(s) = Ag(s) + Mg(NO3)2(aq) =>
2 AgNO3(aq) + Mg(s) = 2 Ag(s) + Mg(NO3)2(aq)
KAl(SO4)2 + NaOH = K[Al(SO4)2](OH)4 + Na2 =>
KAl(SO4)2 + 4 NaOH = K[Al(SO4)2](OH)4 + 2 Na2
Hg + SO2 = Hg2SO2 =>
2 Hg + SO2 = Hg2SO2
NaHCO3 + HOH = H2CO3 + NaOH =>
NaHCO3 + HOH = H2CO3 + NaOH
(NH4)3PO4 + Na2SO4 = (NH4)2SO4 + Na3PO4 =>
2(NH4)3PO4 + 3 Na2SO4 = 3(NH4)2SO4 + 2 Na3PO4
NaCNO + H2O = CO2 + NH3 + NaOH =>
NaCNO + 2 H2O = CO2 + NH3 + NaOH
C5H5N + O2 = CO2 + H2O + NO2 =>
4 C5H5N + 29 O2 = 20 CO2 + 10 H2O + 4 NO2
Mg(s) + NaCl(aq) = Na + MgCl2 =>
Mg(s) + 2 NaCl(aq) = 2 Na + MgCl2
Zn(s) + OH{-}(aq) + H2O(l) = Zn(OH)4{-}(aq) + H2(g) =>
2 Zn(s) + 2 OH{-}(aq) + 6 H2O(l) = 2 Zn(OH)4{-}(aq) + 3 H2(g)
CH3CHO + O2 = CH3COOH =>
2 CH3CHO + O2 = 2 CH3COOH
Ta + Cl = TaCl5 =>
Ta + 5 Cl = TaCl5
H2S + SO2 = S + H2O =>
2 H2S + SO2 = 3 S + 2 H2O
NaOH + HBr = NaBr + H2O =>
NaOH + HBr = NaBr + H2O
Cu + CI2 = CuCI2 =>
Cu + CI2 = CuCI2
C6H5Cl + C3H5Cl + AlCl = C9H10 + AlCl4 =>
3 C6H5Cl + 3 C3H5Cl + 2 AlCl = 3 C9H10 + 2 AlCl4
NaCl + H2SO4 = Na2SO4 + HCl =>
2 NaCl + H2SO4 = Na2SO4 + 2 HCl
KMnO4 + Ba(NO3)2 = Ba(MnO4)2 + KNO3 =>
2 KMnO4 + Ba(NO3)2 = Ba(MnO4)2 + 2 KNO3
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