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4 K2Cr2O7 + 17 H2SO4 + 3 H2S = 8 KHSO4 + 4 Cr2(SO4)3 + 16 H2O
CH3COOH + Pb = Pb(CH3COOH) =>
CH3COOH + Pb = Pb(CH3COOH)
Ca + H3P = Ca3P2 + H =>
3 Ca + 2 H3P = Ca3P2 + 6 H
Mn + S = MnS2 =>
Mn + 2 S = MnS2
Cl + NH4Br = ClBr + NH4 =>
Cl + NH4Br = ClBr + NH4
Al2O3 + H3PO4 = AlPO4 + H2O =>
Al2O3 + 2 H3PO4 = 2 AlPO4 + 3 H2O
CH3COOH + CH3CH2OH = CH3COOCH2CH3 + H2O =>
CH3COOH + CH3CH2OH = CH3COOCH2CH3 + H2O
BaCl2(aq) + K2CrO4(aq) = BaCrO4(s) + KCl(aq) =>
BaCl2(aq) + K2CrO4(aq) = BaCrO4(s) + 2 KCl(aq)
NaI + HClO = NaIO3 + HCl =>
NaI + 3 HClO = NaIO3 + 3 HCl
Zn + KCl = ZnCl2 + K =>
Zn + 2 KCl = ZnCl2 + 2 K
Ca3P2 + O2 = CaO + P =>
2 Ca3P2 + 3 O2 = 6 CaO + 4 P
S2 + N2 = N2S5 =>
5 S2 + 2 N2 = 2 N2S5
Ca2Si + Cl2 = CaCl2 + SiCl4 =>
Ca2Si + 4 Cl2 = 2 CaCl2 + SiCl4
Ca3(PO4)2 + KOH = Ca(OH)2 + K3PO4 =>
Ca3(PO4)2 + 6 KOH = 3 Ca(OH)2 + 2 K3PO4
CH2Cl2 + O2 = CO2 + H2O + Cl2 =>
2 CH2Cl2 + 3 O2 = 2 CO2 + 2 H2O + 2 Cl2
Fe(NO3)2 + HCl = FeCl2 + H(NO3) =>
Fe(NO3)2 + 2 HCl = FeCl2 + 2 H(NO3)
K2SO4(aq) + Na2CO3(aq) = K2CO3(aq) + Na2SO4(aq) =>
K2SO4(aq) + Na2CO3(aq) = K2CO3(aq) + Na2SO4(aq)
NaH + CO3 = NaHCO3 =>
NaH + CO3 = NaHCO3
Cr + O2 + H2O = Cr{3+} + OH{-} =>
4 Cr + 3 O2 + 6 H2O = 4 Cr{3+} + 12 OH{-}
Ag2S + Cr(OH)3 + OH{-} = Ag + HS{-} + CrO4{2-} + H2O =>
3 Ag2S + 2 Cr(OH)3 + 7 OH{-} = 6 Ag + 3 HS{-} + 2 CrO4{2-} + 5 H2O
CuCl + H2SO4 = CuSO4 + CuCl2 + SO2 + H2O =>
2 CuCl + 2 H2SO4 = CuSO4 + CuCl2 + SO2 + 2 H2O
N2 + H = NH4 =>
N2 + 8 H = 2 NH4
H2SO4 + HCl = H2S + Cl2 + H2O =>
H2SO4 + 8 HCl = H2S + 4 Cl2 + 4 H2O
NO2 + F2 = NO2F =>
2 NO2 + F2 = 2 NO2F
H2S + KOH = HOH + K2S =>
H2S + 2 KOH = 2 HOH + K2S
NaBr + Al2(SO4)3 = Na2SO4 + AlBr3 =>
6 NaBr + Al2(SO4)3 = 3 Na2SO4 + 2 AlBr3
C7H7NO2 + SO3 = C7H7NSO5 =>
C7H7NO2 + SO3 = C7H7NSO5
MoO3 + H2O = H2MoO4 =>
MoO3 + H2O = H2MoO4
K + B2O3 = K2O + B =>
6 K + B2O3 = 3 K2O + 2 B
Pb(NO3)2 + Na2SO4 = PbSO4 + Na2(NO3)2 =>
Pb(NO3)2 + Na2SO4 = PbSO4 + Na2(NO3)2
Hg + O2 = HgO =>
2 Hg + O2 = 2 HgO
SO2 + O2 = SO3 =>
2 SO2 + O2 = 2 SO3
HS + HNO3 = H2SO4 + NO + H2O =>
3 HS + 7 HNO3 = 3 H2SO4 + 7 NO + 2 H2O
ClO3{-} + Br{-} + H{+} = BrO3{-} + ClO2 + H2O =>
6 ClO3{-} + Br{-} + 6 H{+} = BrO3{-} + 6 ClO2 + 3 H2O
CH4 = C + H =>
CH4 = C + 4 H
NaI + Zn(NO3)2 = NaNO3 + ZnI2 =>
2 NaI + Zn(NO3)2 = 2 NaNO3 + ZnI2
MgCl2 + NH3 = MgH2 + NCl3 =>
3 MgCl2 + 2 NH3 = 3 MgH2 + 2 NCl3
HNO2 + K2Cr2O7 + H2SO4 = HNO3 + K2SO4 + Cr2(SO4)3 + H2O =>
3 HNO2 + K2Cr2O7 + 4 H2SO4 = 3 HNO3 + K2SO4 + Cr2(SO4)3 + 4 H2O
SrI = Sr + I =>
SrI = Sr + I
Rb + H2O = Rb2O + H2 =>
2 Rb + H2O = Rb2O + H2
Al + Na3 = AlNa3 =>
Al + Na3 = AlNa3
Sn(s) + HCl(aq) = SnCl(aq) + H2(g) =>
2 Sn(s) + 2 HCl(aq) = 2 SnCl(aq) + H2(g)
HO = H2O2 =>
2 HO = H2O2
FeSO4 + K3[Fe(Cn)6] = Fe3[Fe(Cn)6]2 + K2SO4 =>
3 FeSO4 + 2 K3[Fe(Cn)6] = Fe3[Fe(Cn)6]2 + 3 K2SO4
C2H2F2 + O2 = CO2 + HF =>
C2H2F2 + 2 O2 = 2 CO2 + 2 HF
H2O2 = H2O + O2 =>
2 H2O2 = 2 H2O + O2
BaCl2*H2O = BaCl2 + H2O =>
BaCl2*H2O = BaCl2 + H2O
Ni(OH)2 + Br2 + H2O = Ni(OH)3 + HBr =>
2 Ni(OH)2 + Br2 + 2 H2O = 2 Ni(OH)3 + 2 HBr
H2O + HCl = H2Cl + H2O2 =>
2 H2O + 2 HCl = 2 H2Cl + H2O2
Co(OH)3 + HCl = CoCl2 + Cl2 + H2O =>
2 Co(OH)3 + 6 HCl = 2 CoCl2 + Cl2 + 6 H2O
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