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2 CH3CHO + 5 O2 = 4 CO2 + 4 H2O
Ba + Au2O3 = BaO + Au =>
3 Ba + Au2O3 = 3 BaO + 2 Au
K2S + Fe(OH)2 = KOH + FeS =>
K2S + Fe(OH)2 = 2 KOH + FeS
Al(OH)3 + H2CO3 = Al2(CO3)3 + H2O =>
2 Al(OH)3 + 3 H2CO3 = Al2(CO3)3 + 6 H2O
Fe + NH4 = Fe(N)3 + H2 =>
Fe + 3 NH4 = Fe(N)3 + 6 H2
C6H6 + O2 = CO2 + H2O =>
2 C6H6 + 15 O2 = 12 CO2 + 6 H2O
CaN2O6 + VC10H14O5 + C3H8O2 = Ca017V2O5 + N2 + H2O + CO2 =>
136 CaN2O6 + 16 VC10H14O5 + 53 C3H8O2 = 8 Ca017V2O5 + 136 N2 + 324 H2O + 319 CO2
Cl2 + NaOH + Na2SO3 = NaCl + Na2SO4 + H2O =>
Cl2 + 2 NaOH + Na2SO3 = 2 NaCl + Na2SO4 + H2O
Na + MgF2 = NaF + Mg =>
2 Na + MgF2 = 2 NaF + Mg
AlOH + CO2 = AlHCO3 =>
AlOH + CO2 = AlHCO3
B(OH)3 + H3Po4 = BPo4 + H2O =>
B(OH)3 + H3Po4 = BPo4 + 3 H2O
Al(OH)3 = Al2O3 + H2O =>
2 Al(OH)3 = Al2O3 + 3 H2O
C6H5CHO + NaHSO3 = C6H5COH2SO3 + Na =>
C6H5CHO + NaHSO3 = C6H5COH2SO3 + Na
FeCr2O7 + O2 + K2CO3 = Fe2O3 + K2Cr2O7 + CO2 =>
4 FeCr2O7 + O2 + 4 K2CO3 = 2 Fe2O3 + 4 K2Cr2O7 + 4 CO2
AgNO3 + C6H5O7Na3 + H2O = Ag + NaNO3 + C6H5O7H3 + O2 =>
12 AgNO3 + 4 C6H5O7Na3 + 6 H2O = 12 Ag + 12 NaNO3 + 4 C6H5O7H3 + 3 O2
Na2CO3 + CH3COOH = Na2CH3COOH + H2O + CO2 =>
4 Na2CO3 + 5 CH3COOH = 4 Na2CH3COOH + 2 H2O + 6 CO2
Zn(NO3)2 + Ba(OH)2 = Ba[Zn(OH)4] + Ba(NO3)2 =>
Zn(NO3)2 + 2 Ba(OH)2 = Ba[Zn(OH)4] + Ba(NO3)2
PCl3 + CH3OH = HPO(OCH3)2 + HCl + CH3Cl =>
PCl3 + 3 CH3OH = HPO(OCH3)2 + 2 HCl + CH3Cl
K + Pb(CrO4)2 = Pb + K2CrO4 =>
4 K + Pb(CrO4)2 = Pb + 2 K2CrO4
Ca + O2 = CaO =>
2 Ca + O2 = 2 CaO
N2 + H2 = NH2 =>
N2 + 2 H2 = 2 NH2
Fe + HNO3 = Fe(NO3)3 + NO + H2O =>
Fe + 4 HNO3 = Fe(NO3)3 + NO + 2 H2O
C + H2O = CH4 + CO2 =>
2 C + 2 H2O = CH4 + CO2
CH3COONa + FeCl3 + H2O = [Fe3(CH3COO)6O]OH + NaCl + CH3COOH =>
9 CH3COONa + 3 FeCl3 + 2 H2O = [Fe3(CH3COO)6O]OH + 9 NaCl + 3 CH3COOH
(NH4)2CO3 + AgNO3 = AgCO3 + (NH4)2NO3 =>
(NH4)2CO3 + AgNO3 = AgCO3 + (NH4)2NO3
C7H14COOH + SO4 = H2S + CO2 + H2O =>
10 C7H14COOH + 43 SO4 = 43 H2S + 80 CO2 + 32 H2O
OH + HCO2CO2H = HCO2CO2 + H2O =>
OH + HCO2CO2H = HCO2CO2 + H2O
Cu2S(s) = S(s) + Cu(s) =>
Cu2S(s) = S(s) + 2 Cu(s)
KJ + H2SO4 = J2 + K2SO4 + H2S + H2O =>
8 KJ + 5 H2SO4 = 4 J2 + 4 K2SO4 + H2S + 4 H2O
LiOH + Mg(SO4)2 = LiSO4 + Mg(OH)2 =>
2 LiOH + Mg(SO4)2 = 2 LiSO4 + Mg(OH)2
*MgCo3 = Mg + Co2 =>
2*MgCo3 = 2 Mg + 3 Co2
(c)CuSO4(aq) + Na2S(aq) = CuS(s) + Na2SO4(aq) =>
(c)CuSO4(aq) + Na2S(aq) = CuS(s) + Na2SO4(aq)
Na2 + SiO4 = Na2SiO4 =>
Na2 + SiO4 = Na2SiO4
Ca + Sr = CaSr =>
Ca + Sr = CaSr
NH3 + CH3I = CH3NH3I =>
NH3 + CH3I = CH3NH3I
K2CrO4 + K2S + H2O = Cr(OH)3 + S + KOH =>
2 K2CrO4 + 3 K2S + 8 H2O = 2 Cr(OH)3 + 3 S + 10 KOH
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
Ba(NO3)2 + TiO(NO3)2 + C2H5NO2 = BaTiO3 + N2 + CO2 + H2O =>
9 Ba(NO3)2 + 9 TiO(NO3)2 + 20 C2H5NO2 = 9 BaTiO3 + 28 N2 + 40 CO2 + 50 H2O
C8H8O2 + NaHCO3 = C8H7OONa + H2O + CO2 =>
C8H8O2 + NaHCO3 = C8H7OONa + H2O + CO2
C3H7COOH + Ca = (C3H7COO)2Ca + H2 =>
2 C3H7COOH + Ca = (C3H7COO)2Ca + H2
V2O5 + HCl = VOCl3 + H2O =>
V2O5 + 6 HCl = 2 VOCl3 + 3 H2O
KMnO4 + NaHSO3 + NaOH = H2O + NaHSO4 + Na2MnO4 + K2MnO4 =>
2 KMnO4 + NaHSO3 + 2 NaOH = H2O + NaHSO4 + Na2MnO4 + K2MnO4
Fe(acac)3 + NaOH = Fe(OH) + Na(acac) =>
Fe(acac)3 + 3 NaOH = 3 Fe(OH) + 3 Na(acac)
CH3COOH + Br2 = BrCH2COOH + HBr =>
CH3COOH + Br2 = BrCH2COOH + HBr
Mg{2+} + Br{-} = MgBr2 =>
Mg{2+} + 2 Br{-} = MgBr2
C2H7N + O2 = NO2 + H2O + CO2 =>
4 C2H7N + 19 O2 = 4 NO2 + 14 H2O + 8 CO2
KClO2 + KMnO4 + KHSO4 = KClO3 + K2SO4 + MnSO4 + H2O =>
5 KClO2 + 2 KMnO4 + 6 KHSO4 = 5 KClO3 + 4 K2SO4 + 2 MnSO4 + 3 H2O
Na2CO3 + HCl = NaCl + H2O + CO2 =>
Na2CO3 + 2 HCl = 2 NaCl + H2O + CO2
Al + S8 = Al2S3 =>
16 Al + 3 S8 = 8 Al2S3
Cu + HNO3 = Cu(NO3)2 + NO + H2O =>
3 Cu + 8 HNO3 = 3 Cu(NO3)2 + 2 NO + 4 H2O
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