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2 As2S2 + 7 O2 = 2 As2O3 + 4 SO2
H2C2O4 + HNO3 = CO2 + H2O + NO2 =>
H2C2O4 + 2 HNO3 = 2 CO2 + 2 H2O + 2 NO2
ZnSO4 + NaS = ZnS + NaSO4 =>
ZnSO4 + NaS = ZnS + NaSO4
HCl + CoCl2 = CoCl + HCl2 =>
HCl + CoCl2 = CoCl + HCl2
Zn + I2 = Zn2I5 =>
4 Zn + 5 I2 = 2 Zn2I5
Mg[OH]2 = MgOH2O =>
Mg[OH]2 = MgOH2O
CuCN + HF = HCN + CuF =>
CuCN + HF = HCN + CuF
AlOH + HCl = AlH + OHCl =>
AlOH + HCl = AlH + OHCl
MgCO3 = Mg + (CO3) =>
MgCO3 = Mg + (CO3)
SiO2 + NaOH = Na2SiO3 + H2O =>
SiO2 + 2 NaOH = Na2SiO3 + H2O
K2OCaO = K2CaO2 =>
K2OCaO = K2CaO2
Al(OH)3 + Ca(OH)2 = Ca3[Al(OH)6]2 =>
2 Al(OH)3 + 3 Ca(OH)2 = Ca3[Al(OH)6]2
Cu + HNO3 = Cu(NO3)2 + NO2 + H2O =>
Cu + 4 HNO3 = Cu(NO3)2 + 2 NO2 + 2 H2O
Na2S2O3 + I2 = Na2S4O6 + NaI =>
2 Na2S2O3 + I2 = Na2S4O6 + 2 NaI
HF + Ca = H2 + CaF2 =>
2 HF + Ca = H2 + CaF2
KCrO2 + Na2O2 + H2O = K2CrO4 + Na2CrO4 + NaOH =>
2 KCrO2 + 3 Na2O2 + 2 H2O = K2CrO4 + Na2CrO4 + 4 NaOH
C6H5COOH + O2 = CO2 + H2O =>
2 C6H5COOH + 15 O2 = 14 CO2 + 6 H2O
CuSO4*5H2O = CuSO4 + H2O =>
CuSO4*5H2O = CuSO4 + 5 H2O
I + Fe(No3)3 = FeI2 + No3 =>
2 I + Fe(No3)3 = FeI2 + 3 No3
NaOH(ac) + Al(s) + H2O(l) = NaAl(OH)4(ac) + H2(g) =>
2 NaOH(ac) + 2 Al(s) + 6 H2O(l) = 2 NaAl(OH)4(ac) + 3 H2(g)
NaNO2 + KI + H2SO4 = NO + I2 + Na2SO4 + K2SO4 + H2O =>
2 NaNO2 + 2 KI + 2 H2SO4 = 2 NO + I2 + Na2SO4 + K2SO4 + 2 H2O
AgNO2 + Na2CrO4 = Ag2CrO4 + NaNO2 =>
2 AgNO2 + Na2CrO4 = Ag2CrO4 + 2 NaNO2
CHCl3(g) + H2(g) = CH4(g) + Cl2(g) =>
2 CHCl3(g) + 3 H2(g) = 2 CH4(g) + 3 Cl2(g)
Na3NO4 + CO2 = NaNO3 + Na2CO3 =>
Na3NO4 + CO2 = NaNO3 + Na2CO3
Au + HNO3 + HCl = HAuCl4 + NO2 + H2O =>
Au + 3 HNO3 + 4 HCl = HAuCl4 + 3 NO2 + 3 H2O
H3PO3 + NaOH = Na2HPO3 + H2O =>
H3PO3 + 2 NaOH = Na2HPO3 + 2 H2O
Na + S = Na2S =>
2 Na + S = Na2S
La(OH)3 + Hf(OH)4 = La2Hf2O7 + H2O =>
2 La(OH)3 + 2 Hf(OH)4 = La2Hf2O7 + 7 H2O
NaOH(aq) = Na2O(s) + H2O(l) =>
2 NaOH(aq) = Na2O(s) + H2O(l)
Fe2O3 + Al + S = Al2SO3 + Fe =>
Fe2O3 + 2 Al + S = Al2SO3 + 2 Fe
LiOH + K2O = Li2O + KOH =>
2 LiOH + K2O = Li2O + 2 KOH
AB = A4B4 =>
4 AB = A4B4
BaO3 = BaO + O2 =>
BaO3 = BaO + O2
Au + HNO3 + HCl = HAuCl4 + NO + H2O =>
Au + HNO3 + 4 HCl = HAuCl4 + NO + 2 H2O
F2 + H2O = O + HF =>
F2 + H2O = O + 2 HF
CO3H2O = HCO3OH =>
CO3H2O = HCO3OH
C9H16 + H2 = C9H16H2 =>
C9H16 + H2 = C9H16H2
Al2O3 + Fe(g) = Fe3O4 + Al =>
4 Al2O3 + 9 Fe(g) = 3 Fe3O4 + 8 Al
Na2HVO4 = Na4V2O7H2O =>
2 Na2HVO4 = Na4V2O7H2O
Cu(OH)2 + KI = Cu2I2 + I2 + KOH =>
2 Cu(OH)2 + 4 KI = Cu2I2 + I2 + 4 KOH
AgNO3(aq) + Na2SO4(aq) = Ag2SO4(s) + NaNO3(aq) =>
2 AgNO3(aq) + Na2SO4(aq) = Ag2SO4(s) + 2 NaNO3(aq)
CaSO4 + CH4 + CO2 = CaCO3 + S + H2O =>
4 CaSO4 + 3 CH4 + CO2 = 4 CaCO3 + 4 S + 6 H2O
KMnO4 + HCl = KCl + MnCl2 + H2O + Cl2 =>
2 KMnO4 + 16 HCl = 2 KCl + 2 MnCl2 + 8 H2O + 5 Cl2
CHI + NaOH = NaCI + H2O =>
CHI + NaOH = NaCI + H2O
Ca3N2 = Ca + N =>
Ca3N2 = 3 Ca + 2 N
Cu + HNO3 = Cu(NO3)2 + NO2 + H2O = Cu(NO3)2 + NaOH = Cu(OH)2 + NaNO3 =>
Cu + 4 HNO3 = Cu(NO3)2 + 2 NO2 + 2 H2O
HNO3 + Na2CO3 = H2CO3 + NaNO3 =>
2 HNO3 + Na2CO3 = H2CO3 + 2 NaNO3
Mn2O3 + HNO2 = MnNO3 + H2O =>
Mn2O3 + 2 HNO2 = 2 MnNO3 + H2O
(Cu(NH3)4)(OH)2 + HCl = CuO + H2O + NH4Cl =>
(Cu(NH3)4)(OH)2 + 4 HCl = CuO + H2O + 4 NH4Cl
H2S + K = H2 + K2S =>
H2S + 2 K = H2 + K2S
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