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2 Fe + 3 H2SO4 = Fe2(SO4)3 + 3 H2
K + H2O = KOH + H2 =>
2 K + 2 H2O = 2 KOH + H2
ZNS + H2SO4 = ZNSO4 + H2S =>
ZNS + H2SO4 = ZNSO4 + H2S
S + HNO3 = SO4 + NO2 + H2O =>
S + 8 HNO3 = SO4 + 8 NO2 + 4 H2O
Fe(OH)3 = Fe2O3 + H2O =>
2 Fe(OH)3 = Fe2O3 + 3 H2O
S + HNO3 = SO2 + NO2 + H2O =>
S + 4 HNO3 = SO2 + 4 NO2 + 2 H2O
Na + HCl = H2 + NaCl =>
2 Na + 2 HCl = H2 + 2 NaCl
Cu + O2 = Cu2O =>
4 Cu + O2 = 2 Cu2O
C6H12O6(s) + O2(g) = CO2(g) + H2O(l) =>
C6H12O6(s) + 6 O2(g) = 6 CO2(g) + 6 H2O(l)
H2 + I2 = HI =>
H2 + I2 = 2 HI
KClO3 = KCl + KClO4 =>
4 KClO3 = KCl + 3 KClO4
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
C5H10O5 + O2 = CO2 + H2O =>
C5H10O5 + 5 O2 = 5 CO2 + 5 H2O
H2O2 = H2O + O2 =>
2 H2O2 = 2 H2O + O2
CON2H4 + NO2 = CO2 + H20 + N2 =>
20 CON2H4 + 10 NO2 = 20 CO2 + 4 H20 + 25 N2
(NH4)2SO4 + Ca(OH)2 = H2O + NH3 + CaSO4 =>
(NH4)2SO4 + Ca(OH)2 = 2 H2O + 2 NH3 + CaSO4
NaOH + H2SO4 = Na2SO4 + H2O =>
2 NaOH + H2SO4 = Na2SO4 + 2 H2O
Ca(OH)2 + HNO3 = Ca(NO3)2 + H2O =>
Ca(OH)2 + 2 HNO3 = Ca(NO3)2 + 2 H2O
CH3OH(l) + O2(g) = CO2(g) + H2O(g) =>
2 CH3OH(l) + 3 O2(g) = 2 CO2(g) + 4 H2O(g)
CaC2 + H2O = C2H2 + Ca(OH)2 =>
CaC2 + 2 H2O = C2H2 + Ca(OH)2
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
CO + O2 = CO2 =>
2 CO + O2 = 2 CO2
H2O = H2 + O2 =>
2 H2O = 2 H2 + O2
H2O2 = H2O + O2 =>
2 H2O2 = 2 H2O + O2
C + Na = Na4C =>
C + 4 Na = Na4C
H3PO4 + NaOH = Na3PO4 + H2O =>
H3PO4 + 3 NaOH = Na3PO4 + 3 H2O
Cu + HNO3 = Cu(NO3)2 + NO + H2O =>
3 Cu + 8 HNO3 = 3 Cu(NO3)2 + 2 NO + 4 H2O
Bi(OH)3 + K2SnO2 = Bi + K2SnO3 + H2O =>
2 Bi(OH)3 + 3 K2SnO2 = 2 Bi + 3 K2SnO3 + 3 H2O
Na2O + SO3 = Na2SO4 =>
Na2O + SO3 = Na2SO4
Al + HCl = AlCl3 + H2 =>
2 Al + 6 HCl = 2 AlCl3 + 3 H2
S + H2SO4 = SO2 + H2O =>
S + 2 H2SO4 = 3 SO2 + 2 H2O
KHCO3 = K2CO3 + CO2 + H2O =>
2 KHCO3 = K2CO3 + CO2 + H2O
AgNO3 + K3PO4 = Ag3PO4 + K3(NO3)3 =>
3 AgNO3 + K3PO4 = Ag3PO4 + K3(NO3)3
C4H10(g) + O2(g) = CO2(g) + H2O(g) =>
2 C4H10(g) + 13 O2(g) = 8 CO2(g) + 10 H2O(g)
Li + Cl2 = LiCl =>
2 Li + Cl2 = 2 LiCl
Al + H2SO4 = Al2(SO4)3 + H2 =>
2 Al + 3 H2SO4 = Al2(SO4)3 + 3 H2
NH4Cl + Ca(OH)2 = NH3 + H2O + CaCl2 =>
2 NH4Cl + Ca(OH)2 = 2 NH3 + 2 H2O + CaCl2
KClO3 = KCl + KClO4 =>
4 KClO3 = KCl + 3 KClO4
LI + S = LIS =>
LI + S = LIS
Pb(NO3)2(aq) + NaOH(aq) = Pb(OH)2 + NaNO3 =>
Pb(NO3)2(aq) + 2 NaOH(aq) = Pb(OH)2 + 2 NaNO3
H2O + Mg = MgO + H2 =>
H2O + Mg = MgO + H2
Ca + H2O = Ca(OH)2 + H2 =>
Ca + 2 H2O = Ca(OH)2 + H2
Al + O2 = Al2O3 =>
4 Al + 3 O2 = 2 Al2O3
Ag2S + H2O = Ag + H2S + O2 =>
2 Ag2S + 2 H2O = 4 Ag + 2 H2S + O2
CaF2 + H2SO4 = CaSO4 + HF =>
CaF2 + H2SO4 = CaSO4 + 2 HF
CaCl2 + AgNO3 = AgCl + Ca(NO3)2 =>
CaCl2 + 2 AgNO3 = 2 AgCl + Ca(NO3)2
Pb(NO3)2(aq) + NaOH(aq) = Pb(OH)2(s) + NaNO3(aq) =>
Pb(NO3)2(aq) + 2 NaOH(aq) = Pb(OH)2(s) + 2 NaNO3(aq)
CH3CH2CH2NH2 + HCl = CH3CH2CH2NH3Cl =>
CH3CH2CH2NH2 + HCl = CH3CH2CH2NH3Cl
Fe + H2O + O2 = Fe(OH)3 =>
4 Fe + 6 H2O + 3 O2 = 4 Fe(OH)3
Si4H10 + O2 = SiO2 + H2O =>
2 Si4H10 + 13 O2 = 8 SiO2 + 10 H2O
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