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2 B + 3 H2 = 2 BH3
FeO + AgNO3 = Ag + Fe2O3 + Fe(NO3)2 =>
3 FeO + 2 AgNO3 = 2 Ag + Fe2O3 + Fe(NO3)2
NaOH(aq) + Li2SO4(aq) = Na2SO4 + LiOH =>
2 NaOH(aq) + Li2SO4(aq) = Na2SO4 + 2 LiOH
C2H4O = C2H4 + O2 =>
2 C2H4O = 2 C2H4 + O2
HNO3 + Sn0 = SnO2 + NO + H2O =>
4 HNO3 + 3 Sn0 = 3 SnO2 + 4 NO + 2 H2O
Br2 + SO2 + H2O = H{+} + Br{-} + SO42{-} =>
79 Br2 + 2 SO2 + 80 H2O = 160 H{+} + 158 Br{-} + 2 SO42{-}
C7H147 + O2 = CO2 + H2O =>
4 C7H147 + 175 O2 = 28 CO2 + 294 H2O
Cl2 + HF = HCl + F =>
Cl2 + 2 HF = 2 HCl + 2 F
NiCl2(aq) + AgNO3(aq) = AgCl(s) + Ni(NO3)2(aq) =>
NiCl2(aq) + 2 AgNO3(aq) = 2 AgCl(s) + Ni(NO3)2(aq)
Co + Br2 = CoBr =>
2 Co + Br2 = 2 CoBr
WO3 + I2 = WO2I2 + IO4 =>
8 WO3 + 9 I2 = 8 WO2I2 + 2 IO4
FeO + SiO2 = FeOSiO2 =>
FeO + SiO2 = FeOSiO2
Mg + H3N = Mg(NH2)2 + H2 =>
Mg + 2 H3N = Mg(NH2)2 + H2
NaCrO2 + NaHSO4 = Cr2(SO4)3 + Na2SO4 + H2O =>
2 NaCrO2 + 8 NaHSO4 = Cr2(SO4)3 + 5 Na2SO4 + 4 H2O
Li + H2O = LiOH + H2 =>
2 Li + 2 H2O = 2 LiOH + H2
FeCl3 + NH4OH = Fe(OH)3 + NH4Cl =>
FeCl3 + 3 NH4OH = Fe(OH)3 + 3 NH4Cl
Os + O2 = OsO3 =>
2 Os + 3 O2 = 2 OsO3
Zn + K2Cr2O7 + H2SO4 = CrSO4 + H2O + K2SO4 + ZnSO4 =>
4 Zn + K2Cr2O7 + 7 H2SO4 = 2 CrSO4 + 7 H2O + K2SO4 + 4 ZnSO4
Cu2O + C = Cu + CO2 =>
2 Cu2O + C = 4 Cu + CO2
I{5+} + O{2-} = I2O5 =>
2 I{5+} + 5 O{2-} = I2O5
ZnSO4 = Zn + SO2 + O2 =>
ZnSO4 = Zn + SO2 + O2
SO2 + O2 = SO3 =>
2 SO2 + O2 = 2 SO3
Zi + Cl2 = ZiCl =>
2 Zi + Cl2 = 2 ZiCl
SO3 + CaOH = H2O + Ca2SO4 =>
SO3 + 2 CaOH = H2O + Ca2SO4
FePO4 = Fe2O3 + P4O10 =>
4 FePO4 = 2 Fe2O3 + P4O10
FeO + AgNO3 = Ag + Fe2O3 + Fe(NO3)2 =>
3 FeO + 2 AgNO3 = 2 Ag + Fe2O3 + Fe(NO3)2
CrCl3 + Cl2 + H2O = H2CrO4 + HCl =>
2 CrCl3 + 3 Cl2 + 8 H2O = 2 H2CrO4 + 12 HCl
NaI + AgNO3 = IAg + NaNO3 =>
NaI + AgNO3 = IAg + NaNO3
PCl5 + Ca(OH)2 = Ca3(PO4)2 + CaCl2 + H2O =>
2 PCl5 + 8 Ca(OH)2 = Ca3(PO4)2 + 5 CaCl2 + 8 H2O
KOH + NO2 = KNO2 + H2O + KNO3 =>
2 KOH + 2 NO2 = KNO2 + H2O + KNO3
FeCl3 + NaOH = Fe(OH)3 + NaCl =>
FeCl3 + 3 NaOH = Fe(OH)3 + 3 NaCl
Br2 + H2S = HBr + S =>
Br2 + H2S = 2 HBr + S
H2S(g) + HFeO2(s) = Fe2S3(s) + H2O(l) =>
3 H2S(g) + 2 HFeO2(s) = Fe2S3(s) + 4 H2O(l)
KMnO4 + NaNO2 + H2O = MnO2 + NaNO3 + KOH =>
2 KMnO4 + 3 NaNO2 + H2O = 2 MnO2 + 3 NaNO3 + 2 KOH
SO2 + H2O2 = H2SO4 =>
SO2 + H2O2 = H2SO4
Br2 + HI = HBr + I2 =>
Br2 + 2 HI = 2 HBr + I2
KHSO3(aq) + NaNO3(aq) = NaHSO3 + KNO3 =>
KHSO3(aq) + NaNO3(aq) = NaHSO3 + KNO3
Na2SO4(aq) + Cu3(PO4)2(aq) = Na3PO4(aq) + CuSO4(aq) =>
3 Na2SO4(aq) + Cu3(PO4)2(aq) = 2 Na3PO4(aq) + 3 CuSO4(aq)
Cu(s) + S(s) = CuS(s) =>
Cu(s) + S(s) = CuS(s)
CaC2 + H2O = C2H2 + CaO2H2 =>
CaC2 + 2 H2O = C2H2 + CaO2H2
Li2CO3 + BaCl2 = LiCl + BaCO3 =>
Li2CO3 + BaCl2 = 2 LiCl + BaCO3
Ag{+} + H2O2 + OH{-} = AgO + H2O =>
2 Ag{+} + H2O2 + 2 OH{-} = 2 AgO + 2 H2O
Sodiumcarbonate + sulfuricacid = Sodiumsulfate + carbonicacid =>
Na2CO3 + H2SO4 = Na2SO4 + H2CO3
C4H6 + Br2 = C4H5Br + HBr =>
C4H6 + Br2 = C4H5Br + HBr
Fe2O3 + CaO = Ca(FeO2)2 =>
Fe2O3 + CaO = Ca(FeO2)2
Ca + NaOH = Ca(OH)2 + Na =>
Ca + 2 NaOH = Ca(OH)2 + 2 Na
(K)2CO3 = K + CO3 =>
(K)2CO3 = 2 K + CO3
H3PO3 + KMnO4 + HNO3 = H3PO4 + KNO3 + Mn(NO3)2 + H2O =>
5 H3PO3 + 2 KMnO4 + 6 HNO3 = 5 H3PO4 + 2 KNO3 + 2 Mn(NO3)2 + 3 H2O
ZnS + ZnO = ZnSO4 + Zn =>
ZnS + 4 ZnO = ZnSO4 + 4 Zn
K3B3O3F6 + K2TaF7 = BF3 + KF + Ta2O5 =>
5 K3B3O3F6 + 6 K2TaF7 = 15 BF3 + 27 KF + 3 Ta2O5
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