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4 Al + 3[O]2 = 2[Al]2[O]3
MnCl2 + (NH4)2S = MnS + NH4Cl =>
MnCl2 + (NH4)2S = MnS + 2 NH4Cl
NO3 + AlCl = AlNO3 + Cl =>
NO3 + AlCl = AlNO3 + Cl
RCHO + CuSO4 + NaOH = RCOOH + Cu2O + Na2SO4 + H2O =>
RCHO + 2 CuSO4 + 4 NaOH = RCOOH + Cu2O + 2 Na2SO4 + 2 H2O
C8H10 = C7H8 + H2 =>
7 C8H10 = 8 C7H8 + 3 H2
H2S + NaBr + NaBrO3 = Na2SO4 + H2O + Br2 =>
3 H2S + NaBr + 5 NaBrO3 = 3 Na2SO4 + 3 H2O + 3 Br2
C851H39 + O19 = CO2 + H112O39 =>
2128 C851H39 + 192145 O19 = 1810928 CO2 + 741 H112O39
Ca(H2Po4)2 + Ca(OH)2 = Ca3(Po4)2 + H2O =>
Ca(H2Po4)2 + 2 Ca(OH)2 = Ca3(Po4)2 + 4 H2O
P + Cl2 + NaOH = NaCl + Na2HPO3 + H2O =>
2 P + 3 Cl2 + 10 NaOH = 6 NaCl + 2 Na2HPO3 + 4 H2O
MnCl2 + (NH4)2S = MnS + NH4Cl =>
MnCl2 + (NH4)2S = MnS + 2 NH4Cl
FePO4 + MgSO4 = Fe2(SO4)3 + Mg3(PO4)2 =>
2 FePO4 + 3 MgSO4 = Fe2(SO4)3 + Mg3(PO4)2
Zi + H2SO4 = ZiSO4 + H =>
Zi + H2SO4 = ZiSO4 + 2 H
Nb + ZnO = NbO + Zn =>
Nb + ZnO = NbO + Zn
Na2CO3(aq) + AgNO3(aq) = Na2NO3(aq) + AgCO3(aq) =>
Na2CO3(aq) + AgNO3(aq) = Na2NO3(aq) + AgCO3(aq)
(CH3CO)2O + CH3CH2OH = CH3CO2CH2CH3 + CH3COOH =>
(CH3CO)2O + CH3CH2OH = CH3CO2CH2CH3 + CH3COOH
Al + Cl2 = AlCl3 =>
2 Al + 3 Cl2 = 2 AlCl3
P2O3 + OH = PO4 + H2O =>
P2O3 + 10 OH = 2 PO4 + 5 H2O
HCl + Li3PO4 = H3PO4 + LiCl =>
3 HCl + Li3PO4 = H3PO4 + 3 LiCl
Al(OH)3 + HMnO4 = Al(MnO4)3 + HOH =>
Al(OH)3 + 3 HMnO4 = Al(MnO4)3 + 3 HOH
KMnO4 + FeSO4*7H2O + H2SO4 = K2SO4 + MnSO4 + Fe2(SO4)3 + H2O =>
2 KMnO4 + 10 FeSO4*7H2O + 8 H2SO4 = K2SO4 + 2 MnSO4 + 5 Fe2(SO4)3 + 78 H2O
C3H5O3Na3 + H2O = C3H8O3 + NaOH =>
C3H5O3Na3 + 3 H2O = C3H8O3 + 3 NaOH
Zn + HCl = ZnCl2 + H2 = =>
Zn + 2 HCl = ZnCl2 + H2
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
NaOH(aq) + Li2SO4(aq) = Na2SO4(aq) + LiOH(aq) =>
2 NaOH(aq) + Li2SO4(aq) = Na2SO4(aq) + 2 LiOH(aq)
H4P2O7 + V(OH)5 = V4(P2O7)5 + H2O =>
5 H4P2O7 + 4 V(OH)5 = V4(P2O7)5 + 20 H2O
NaOH + SO2 = NaO2 + SOH =>
NaOH + SO2 = NaO2 + SOH
K2Cr2O7 + KI + H2SO4 = K2SO4 + Cr2SO4 + I2 + H2O =>
K2Cr2O7 + 10 KI + 7 H2SO4 = 6 K2SO4 + Cr2SO4 + 5 I2 + 7 H2O
AlCl3 + O2 = Al2O3(s) + ClO =>
4 AlCl3 + 9 O2 = 2 Al2O3(s) + 12 ClO
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
N2 + O2 = NO2 =>
N2 + 2 O2 = 2 NO2
Cl{+} + Ag{-} = AgCl =>
Cl{+} + Ag{-} = AgCl
Cl{-} + H2O = ClO3{-} + H{+} + e =>
Cl{-} + 3 H2O = ClO3{-} + 6 H{+} + 6e
V2(SO4)3 + K2Cr2O7 + H2SO4 = (VO2)2SO4 + K2SO4 + Cr2(SO4)3 + H2O =>
3 V2(SO4)3 + 2 K2Cr2O7 + 2 H2SO4 = 3(VO2)2SO4 + 2 K2SO4 + 2 Cr2(SO4)3 + 2 H2O
Al + NaOH = Na3AlO3 + H2 =>
2 Al + 6 NaOH = 2 Na3AlO3 + 3 H2
CuS + Cl2 = CuCl2 + S2Cl2 =>
2 CuS + 3 Cl2 = 2 CuCl2 + S2Cl2
H2S + Zn(NO3)2 = HNO3 + ZnS =>
H2S + Zn(NO3)2 = 2 HNO3 + ZnS
CaCO3(s) + HNO3(ac) = CO2(g) + Ca(NO3)2(ac) + H2O(l) =>
CaCO3(s) + 2 HNO3(ac) = CO2(g) + Ca(NO3)2(ac) + H2O(l)
PbCrO4 + CH3COOH = PbCOOH + CH3CrO4 =>
PbCrO4 + CH3COOH = PbCOOH + CH3CrO4
CO2 + CaSiO3 = SiO2 + CaCO3 =>
CO2 + CaSiO3 = SiO2 + CaCO3
Pb(NO3)2 + KI = PbI2 + K(NO3) =>
Pb(NO3)2 + 2 KI = PbI2 + 2 K(NO3)
AlCl3 + Na2CO3 = AlNa3 + CO3Cl2 =>
2 AlCl3 + 3 Na2CO3 = 2 AlNa3 + 3 CO3Cl2
CH3COOH + CH3CH2OH = CH3C(O)OC2H5 + H2O =>
CH3COOH + CH3CH2OH = CH3C(O)OC2H5 + H2O
MgSO3 + HNO3 = Mg + NO3 + SO + H2O =>
MgSO3 + 4 HNO3 = Mg + 4 NO3 + SO + 2 H2O
S + KCl = KS + Cl =>
S + KCl = KS + Cl
Al(OH)2 + H2SO4 = Al2 + (SO4)3 + H2O =>
6 Al(OH)2 + 6 H2SO4 = 3 Al2 + 2(SO4)3 + 12 H2O
C6H5CHO + KMnO4 + NaOH = C6H5COOK + MnO2 + H2O + NaO =>
C6H5CHO + KMnO4 + NaOH = C6H5COOK + MnO2 + H2O + NaO
Hg(NO3)2 + Zn = Hg2 + Zn(NO3)2 =>
2 Hg(NO3)2 + 2 Zn = Hg2 + 2 Zn(NO3)2
KNO3 + MnSO4 + NaHCO3 = CO2 + KNO2 + Na2MnO4 + Na2SO4 + H2O =>
2 KNO3 + MnSO4 + 4 NaHCO3 = 4 CO2 + 2 KNO2 + Na2MnO4 + Na2SO4 + 2 H2O
K2Cr2O4 + H2SO4 = K2Cr2O7 + H2SO3 =>
K2Cr2O4 + 3 H2SO4 = K2Cr2O7 + 3 H2SO3
BaCO3 + HI = HCO3 + BaI =>
BaCO3 + HI = HCO3 + BaI
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