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4 K2Cr2O7 + H2SO4 + 3 H2S = 4 K2SO4 + 4 Cr2O3 + 4 H2O
Zn + CoSO4 = Co + Zn2SO4 =>
2 Zn + CoSO4 = Co + Zn2SO4
Mn(NO3)2 + Sr(OH)2 = Mn(OH)2 + Sr(NO3)2 =>
Mn(NO3)2 + Sr(OH)2 = Mn(OH)2 + Sr(NO3)2
FeSO4 + Pb(NO3)2 = Fe(NO3)2PbSO4 =>
FeSO4 + Pb(NO3)2 = Fe(NO3)2PbSO4
Mg(OH)2 + (HCl) = MgCl2 + H2O =>
Mg(OH)2 + 2(HCl) = MgCl2 + 2 H2O
CH3NH3Cl = CH3NH2 + HCl =>
CH3NH3Cl = CH3NH2 + HCl
Cu + HNO3 = Cu(NO3) + N2 + H2O =>
10 Cu + 12 HNO3 = 10 Cu(NO3) + N2 + 6 H2O
HCl + CuSO4 = HClCuSO4 =>
HCl + CuSO4 = HClCuSO4
CaCO3 + Mg(OH)2 = MgCO3 + Ca(OH)2 =>
CaCO3 + Mg(OH)2 = MgCO3 + Ca(OH)2
Al + HCl = H2 + AlCl3 =>
2 Al + 6 HCl = 3 H2 + 2 AlCl3
Fe7(CN)18 + CH4 + BaSO4 = BaS + CO2 + HCN + Fe =>
4 Fe7(CN)18 + 18 CH4 + 9 BaSO4 = 9 BaS + 18 CO2 + 72 HCN + 28 Fe
Mg(OH)2 + HCl = MgCl2 + HHO =>
Mg(OH)2 + 2 HCl = MgCl2 + 2 HHO
KNO3 + CaBr2 = CaN2O6 + KBr =>
2 KNO3 + CaBr2 = CaN2O6 + 2 KBr
(Cr(N2H4CO)6)3(Cr(CN)6)3 + KMnO4 + H2SO4 = K2Cr2O7 + MnSO4 + CO2 + KNO3 + K2SO4 + H2O =>
5(Cr(N2H4CO)6)3(Cr(CN)6)3 + 486 KMnO4 + 579 H2SO4 = 15 K2Cr2O7 + 486 MnSO4 + 180 CO2 + 270 KNO3 + 93 K2SO4 + 759 H2O
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
KI + H2SO4 = KHSO4 + I2 + S + H2O =>
6 KI + 7 H2SO4 = 6 KHSO4 + 3 I2 + S + 4 H2O
Fe2O3 + KI = Fe + KIO3 =>
Fe2O3 + KI = 2 Fe + KIO3
Al(OH)3 + HF = H2O + Al(F)3 =>
Al(OH)3 + 3 HF = 3 H2O + Al(F)3
Ag + S = Ag2S8 =>
2 Ag + 8 S = Ag2S8
S8(s) + NO3(aq) = SO3(aq) + NO(g) =>
S8(s) + 12 NO3(aq) = 8 SO3(aq) + 12 NO(g)
C2HNa + C2H5Cl = C4H6 + NaCl =>
C2HNa + C2H5Cl = C4H6 + NaCl
CO(NO3)2(aq) + Na3PO4(aq) = COPO4(s) + Na3(NO3)2(aq) =>
CO(NO3)2(aq) + Na3PO4(aq) = COPO4(s) + Na3(NO3)2(aq)
Zn(OH)2 + HNO3 + H2O = [Zn(H2O)6](NO3)2 =>
Zn(OH)2 + 2 HNO3 + 4 H2O = [Zn(H2O)6](NO3)2
H2O2 + Mg = MgO + H =>
H2O2 + 2 Mg = 2 MgO + 2 H
Ni2(aq) + NH3(aq) = Ni(NH3)6(aq) =>
Ni2(aq) + 12 NH3(aq) = 2 Ni(NH3)6(aq)
FeCl3 + H2S = FeCl2 + S2 + HCl =>
4 FeCl3 + 2 H2S = 4 FeCl2 + S2 + 4 HCl
N2H4O3 + CH6N2O3 = CO2 + H2O + N2 =>
2 N2H4O3 + CH6N2O3 = CO2 + 7 H2O + 3 N2
I + Br2 = IBr =>
2 I + Br2 = 2 IBr
H2SO4 + HNO3 = HSO4 + H2NO3 = HSO4 + H2O + NO2 =>
H2SO4 + HNO3 = HSO4 + H2NO3
NH4ClO4(s) = N2(g) + Cl2(g) + O2(g) + H2O(g) =>
2 NH4ClO4(s) = N2(g) + Cl2(g) + 2 O2(g) + 4 H2O(g)
CuSO4*5H2O = CuSO4 + H2O =>
CuSO4*5H2O = CuSO4 + 5 H2O
PhCH3 + KMnO4 + H2SO4 = PhCOOH + K2SO4 + MnSO4 + H2O =>
5 PhCH3 + 6 KMnO4 + 9 H2SO4 = 5 PhCOOH + 3 K2SO4 + 6 MnSO4 + 14 H2O
Cu + HNO3 = Cu(NO3)2 + NO2 + H2O =>
Cu + 4 HNO3 = Cu(NO3)2 + 2 NO2 + 2 H2O
F2(g) + CaBr2(s) = CaF2(s) + Br2(l) =>
F2(g) + CaBr2(s) = CaF2(s) + Br2(l)
C3H7COO{-} + H2 + HCO3{-} = CH3COO{-} + H2O =>
C3H7COO{-} + 2 H2 + 2 HCO3{-} = 3 CH3COO{-} + 2 H2O
NH4Cl + NaOH = NaCl + N + OH + H4 =>
NH4Cl + NaOH = NaCl + N + OH + H4
Sr(OH)2 + FeCl3 = SrCl2 + H3FeO3 =>
3 Sr(OH)2 + 2 FeCl3 = 3 SrCl2 + 2 H3FeO3
KCl + HNO3 = KNO3 + NOCl + Cl2 + H2O =>
3 KCl + 4 HNO3 = 3 KNO3 + NOCl + Cl2 + 2 H2O
FeBr3(aq) + (NH4)2 + CO3(aq) = FeCO3(s) + BrNH4(aq) =>
2 FeBr3(aq) + 3(NH4)2 + 2 CO3(aq) = 2 FeCO3(s) + 6 BrNH4(aq)
Zn3(C6H5O7)2*2H2O + O2 = ZnO + CO2 + H2O =>
Zn3(C6H5O7)2*2H2O + 9 O2 = 3 ZnO + 12 CO2 + 7 H2O
CaF2(s) + H2SO4(aq) = HF(i) + CaSO4(s) =>
CaF2(s) + H2SO4(aq) = 2 HF(i) + CaSO4(s)
C + H2SO4 = H2CO3 + SO2 + H2O =>
C + 2 H2SO4 = H2CO3 + 2 SO2 + H2O
H2 + ZnO = H2O + Zn =>
H2 + ZnO = H2O + Zn
MnCO3 + H2CO3 = Mn(HCO3)2 =>
MnCO3 + H2CO3 = Mn(HCO3)2
SbCl3(s) + H2O(l) = SbOCl(aq) + HCl(aq) =>
SbCl3(s) + H2O(l) = SbOCl(aq) + 2 HCl(aq)
Calcium + oxygen = calciumoxide =>
2 Ca + O2 = 2 CaO
C2H2 + O2 = CO2 + H2 =>
C2H2 + 2 O2 = 2 CO2 + H2
Ca(OH)2 + HCl(aq) = CaCl2(s) + H2O(l) =>
Ca(OH)2 + 2 HCl(aq) = CaCl2(s) + 2 H2O(l)
SO2(g) + H2O(g) = H2S(g) + O2(g) =>
2 SO2(g) + 2 H2O(g) = 2 H2S(g) + 3 O2(g)
CH4 + H2O + N2 = NH3 + CO =>
CH4 + H2O + N2 = 2 NH3 + CO
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