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4 Fe(s) + 3 O2(g) = 2 Fe2O3
Cr + O2 = Cr2O3 =>
4 Cr + 3 O2 = 2 Cr2O3
Ca(OH)2 + H2SO4 = CaSO4 + H2O =>
Ca(OH)2 + H2SO4 = CaSO4 + 2 H2O
Na(s) + Cl2(g) = NaCl(s) =>
2 Na(s) + Cl2(g) = 2 NaCl(s)
Cu(NO3)2(aq) + Zn(s) = Cu(s) + Zn(NO3)2(aq) =>
Cu(NO3)2(aq) + Zn(s) = Cu(s) + Zn(NO3)2(aq)
SO3 = SO2 + O2 =>
2 SO3 = 2 SO2 + O2
H2CO3 + Ca(OH)2 = CaCO3 + H2O =>
H2CO3 + Ca(OH)2 = CaCO3 + 2 H2O
Rb + P = Rb3P =>
3 Rb + P = Rb3P
Co + H3 = CoH3 =>
Co + H3 = CoH3
MnO2 + HCl = MnCl2 + H2O + Cl2 =>
MnO2 + 4 HCl = MnCl2 + 2 H2O + Cl2
NaHCO3 = Na2CO3 + CO2 + H2O =>
2 NaHCO3 = Na2CO3 + CO2 + H2O
Ca(OH)2 + H3PO4 = Ca3(PO4)2 + H2O =>
3 Ca(OH)2 + 2 H3PO4 = Ca3(PO4)2 + 6 H2O
AgNO3 + CaCl2 = AgCl + Ca(NO3)2 =>
2 AgNO3 + CaCl2 = 2 AgCl + Ca(NO3)2
PCl3 + H2O = H3PO3 + HCl =>
PCl3 + 3 H2O = H3PO3 + 3 HCl
KMnO4 + HCl = KCl + MnCl2 + H2O + Cl2 =>
2 KMnO4 + 16 HCl = 2 KCl + 2 MnCl2 + 8 H2O + 5 Cl2
H2SO4(aq) + NaOH(aq) = Na2SO4(aq) + H2O(l) =>
H2SO4(aq) + 2 NaOH(aq) = Na2SO4(aq) + 2 H2O(l)
C4H10 + O2 = CO2 + H2O =>
2 C4H10 + 13 O2 = 8 CO2 + 10 H2O
Fe2O3 + CO = Fe + CO2 =>
Fe2O3 + 3 CO = 2 Fe + 3 CO2
NaClO3 = NaCl + O2 =>
2 NaClO3 = 2 NaCl + 3 O2
H3BO3 = H4B6O11 + H2O =>
6 H3BO3 = H4B6O11 + 7 H2O
P4 + Cl2 = PCl5 =>
P4 + 10 Cl2 = 4 PCl5
Na + HOH = NaOH + H2 =>
2 Na + 2 HOH = 2 NaOH + H2
NH3 + NO2 = N2 + H2O =>
8 NH3 + 6 NO2 = 7 N2 + 12 H2O
Al + O2 = Al2O3 =>
4 Al + 3 O2 = 2 Al2O3
PCl3 = P4 + Cl2 =>
4 PCl3 = P4 + 6 Cl2
K(s) + H2O(l) = KOH(aq) + H2(g) =>
2 K(s) + 2 H2O(l) = 2 KOH(aq) + H2(g)
CH3CH2OH + O2 = CO2 + H2O =>
CH3CH2OH + 3 O2 = 2 CO2 + 3 H2O
CaO + H2O = Ca(OH)2 =>
CaO + H2O = Ca(OH)2
NH3 + HCl = NH4Cl =>
NH3 + HCl = NH4Cl
Co + HNO3 = Co(NO3)2 + NO + H2O =>
3 Co + 8 HNO3 = 3 Co(NO3)2 + 2 NO + 4 H2O
P + Cl2 = PCl3 =>
2 P + 3 Cl2 = 2 PCl3
S8 + Cl2 = S2Cl2 =>
S8 + 4 Cl2 = 4 S2Cl2
CH3CH2OH + O2 = H2O + CH3COOH =>
CH3CH2OH + O2 = H2O + CH3COOH
H2CO3 + Ca(OH)2 = CaCO3 + H2O =>
H2CO3 + Ca(OH)2 = CaCO3 + 2 H2O
O2(g) + N2(g) = N2O4(g) =>
2 O2(g) + N2(g) = N2O4(g)
H2CO3 = H2O + CO2 =>
H2CO3 = H2O + CO2
P + Cl2 = PCl15 =>
2 P + 15 Cl2 = 2 PCl15
Ti(NO3)4 + FeSO4 = Ti(SO4)4 + FeNO3 =>
Ti(NO3)4 + 4 FeSO4 = Ti(SO4)4 + 4 FeNO3
Li + H2SO4 = Li2SO4 + H2 =>
2 Li + H2SO4 = Li2SO4 + H2
BF3 + Li2SO3 = B2(SO3)3 + LiF =>
2 BF3 + 3 Li2SO3 = B2(SO3)3 + 6 LiF
C2H6 + O2 = CO2 + H2O =>
2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
Ca + O2 = CaO =>
2 Ca + O2 = 2 CaO
Ca(OH)2 + H3PO4 = Ca3(PO4)2 + H2O =>
3 Ca(OH)2 + 2 H3PO4 = Ca3(PO4)2 + 6 H2O
CH3OH = CO + H2 =>
CH3OH = CO + 2 H2
NaF(s) = Na(s) + F2(g) =>
2 NaF(s) = 2 Na(s) + F2(g)
MgSO4 + H2O = MgO + H2SO4 =>
MgSO4 + H2O = MgO + H2SO4
CH3OH = CO + H2 =>
CH3OH = CO + 2 H2
CaO + H2O = Ca(OH)2 =>
CaO + H2O = Ca(OH)2
NH4OH = NH3 + H2O =>
NH4OH = NH3 + H2O
CaCO3 + HCl = CaCl2 + CO2 + H2O =>
CaCO3 + 2 HCl = CaCl2 + CO2 + H2O
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