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K2CrO7 + 14 HCl = 2 KCl + CrCl2 + 5 Cl2 + 7 H2O
Fe2O3 + C = Fe + CO2 =>
2 Fe2O3 + 3 C = 4 Fe + 3 CO2
MgS + H3PO4 = Mg3(PO4)2 + H2S =>
3 MgS + 2 H3PO4 = Mg3(PO4)2 + 3 H2S
S2O2 = OS =>
S2O2 = 2 OS
CH3COOH + NaOH = NaCH3COO + H2O =>
CH3COOH + NaOH = NaCH3COO + H2O
Zn + H2CO3 = ZnO + H2O + CO =>
Zn + H2CO3 = ZnO + H2O + CO
KOH + H3PO4 = K3PO4 + H2O =>
3 KOH + H3PO4 = K3PO4 + 3 H2O
Cl2 + NaI = NaCl + I2 =>
Cl2 + 2 NaI = 2 NaCl + I2
H2C2 = HC =>
H2C2 = 2 HC
H4P2 = PH3 + H2P4 =>
5 H4P2 = 6 PH3 + H2P4
HClO3 + NH3 = NH3ClO3 + H2 =>
2 HClO3 + 2 NH3 = 2 NH3ClO3 + H2
C7H8 + CH3COCl = C9H10O + HCl =>
C7H8 + CH3COCl = C9H10O + HCl
I + NaOH = NaOI + NaI + H2O =>
2 I + 2 NaOH = NaOI + NaI + H2O
CH6NO2 + C8H8O = C8H11N + CO2 + H2O =>
38 CH6NO2 + 37 C8H8O = 38 C8H11N + 30 CO2 + 53 H2O
C4H4O6{2-} + MnO4{-} + H{+} = Mn{+2} + CO2 + H2O =>
C4H4O6{2-} + 2 MnO4{-} + 8 H{+} = 2 Mn{+2} + 4 CO2 + 6 H2O
Cu + AgNO3 = Cu(AgNO3) =>
Cu + AgNO3 = Cu(AgNO3)
NaCH3COO*HCl = NaCl + CH3COOH =>
NaCH3COO*HCl = NaCl + CH3COOH
Ca2CO3 + H2SO4 = CaSO4 + H4CO3 =>
Ca2CO3 + 2 H2SO4 = 2 CaSO4 + H4CO3
NaNO3H2S = NaSH2NO3 =>
NaNO3H2S = NaSH2NO3
H2O(g) + CO = CO2(g) + H2(g) =>
H2O(g) + CO = CO2(g) + H2(g)
KFeO3 + HFe = Fe2 + KFe + H2O =>
KFeO3 + 6 HFe = 3 Fe2 + KFe + 3 H2O
C + N2 = C3N4 =>
3 C + 2 N2 = C3N4
HJ + HNO3 = HJO3 + NO2 + H2O =>
HJ + 6 HNO3 = HJO3 + 6 NO2 + 3 H2O
CuS + HNO3 = Cu(NO3)2 + S + NO + H2O =>
3 CuS + 8 HNO3 = 3 Cu(NO3)2 + 3 S + 2 NO + 4 H2O
CoCl2 + Na2O3 + NaOH + H2O = Co(OH)3 + NaCl =>
4 CoCl2 + Na2O3 + 6 NaOH + 3 H2O = 4 Co(OH)3 + 8 NaCl
CH2O + Cu(OH)2 = CH2O2 + Cu2O + H2O =>
CH2O + 2 Cu(OH)2 = CH2O2 + Cu2O + 2 H2O
W + HI = WI + H2 =>
2 W + 2 HI = 2 WI + H2
[Zn(NH3)4](OH)2 + CH3COOH = Zn(CH3COO)2 + NH3 + H2O =>
[Zn(NH3)4](OH)2 + 2 CH3COOH = Zn(CH3COO)2 + 4 NH3 + 2 H2O
NaIO3 + Na2SO3 + H2SO4 = I3 + Na2SO4 + H2O =>
6 NaIO3 + 15 Na2SO3 + 3 H2SO4 = 2 I3 + 18 Na2SO4 + 3 H2O
KClO3 + HCl = H2O + KCl + Cl2 =>
KClO3 + 6 HCl = 3 H2O + KCl + 3 Cl2
CuS + HNO3 = Cu(NO3)2 + S + NO + H2O =>
3 CuS + 8 HNO3 = 3 Cu(NO3)2 + 3 S + 2 NO + 4 H2O
F2 + NH4I = NH4F + I =>
F2 + 2 NH4I = 2 NH4F + 2 I
Al(OH)3(aq) + HCl(l) = AlCl3 + H2O =>
Al(OH)3(aq) + 3 HCl(l) = AlCl3 + 3 H2O
Fe + O2Fe2O5 = Fe2O3 =>
8 Fe + 3 O2Fe2O5 = 7 Fe2O3
NH4Br + S = (NH4)2S + Br =>
2 NH4Br + S = (NH4)2S + 2 Br
Ca3(PO4)2 + H2SO4 = CaSO4 + Ca(H2PO4)2 =>
Ca3(PO4)2 + 2 H2SO4 = 2 CaSO4 + Ca(H2PO4)2
AlF3 + Cl2 = AlCl3 + F2 =>
2 AlF3 + 3 Cl2 = 2 AlCl3 + 3 F2
C6H5COO + H = C6H5COOH =>
C6H5COO + H = C6H5COOH
N = N2 =>
2 N = N2
NaNO3 + Ca3(PO4)2 = Na3PO4 + Ca(NO3)2 =>
6 NaNO3 + Ca3(PO4)2 = 2 Na3PO4 + 3 Ca(NO3)2
Se + Ga = GaSe =>
Se + Ga = GaSe
Si + HF = SiHF =>
Si + HF = SiHF
AlCl3 + NaOH = Na[Al(OH)4] + NaCl0 =>
AlCl3 + 4 NaOH = Na[Al(OH)4] + 3 NaCl0
BrCl + NaOH + C6H14 = HBr + NaCl + C6H14O =>
BrCl + NaOH + C6H14 = HBr + NaCl + C6H14O
S + O2 = SO3 =>
2 S + 3 O2 = 2 SO3
Fe2O3 + CO = Fe + CO2 =>
Fe2O3 + 3 CO = 2 Fe + 3 CO2
HNO3 + Li = LiNO3 + H2O + NH4NO2 =>
12 HNO3 + 10 Li = 10 LiNO3 + 4 H2O + NH4NO2
NiO3 + H2SO4 = Ni(SO4)3 + H2O =>
NiO3 + 3 H2SO4 = Ni(SO4)3 + 3 H2O
PbO2 + H2SO4 + I2 = PbSO4 + H2O + HIO3 =>
5 PbO2 + 5 H2SO4 + I2 = 5 PbSO4 + 4 H2O + 2 HIO3
K2SO4 + BaI2 = KI + BaSO4 =>
K2SO4 + BaI2 = 2 KI + BaSO4
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