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4 ZX3 + 5 O2 = 4 ZO + 6 X2O
Hg2CO3 = Hg + HgO + CO2 =>
Hg2CO3 = Hg + HgO + CO2
CaO + H2O = Ca(OH)2 =>
CaO + H2O = Ca(OH)2
CaO + CO2 = CaCO3 =>
CaO + CO2 = CaCO3
Sn + HF = SnF2 + H2 =>
Sn + 2 HF = SnF2 + H2
CoO + O2 = Co2O3 =>
4 CoO + O2 = 2 Co2O3
NH4Cl(aq) + NaOH = NH3 + NaCl + H2O =>
NH4Cl(aq) + NaOH = NH3 + NaCl + H2O
FeS2 + O2 = Fe2O3 + SO2 =>
4 FeS2 + 11 O2 = 2 Fe2O3 + 8 SO2
HBr(aq) + MgSO3(s) = H2O + SO2 + MgBr2 =>
2 HBr(aq) + MgSO3(s) = H2O + SO2 + MgBr2
HCO3 + H = H2O + CO2 =>
HCO3 + H = H2O + CO2
As2O3 + HCl = AsCl3 + H2O =>
As2O3 + 6 HCl = 2 AsCl3 + 3 H2O
C7H6O3 + O2 = CO2 + H2O =>
C7H6O3 + 7 O2 = 7 CO2 + 3 H2O
Co(NO3)2 + KOH = Co(OH) + K(NO3)2 =>
Co(NO3)2 + KOH = Co(OH) + K(NO3)2
C + H = C6H6 =>
6 C + 6 H = C6H6
MgO + HCl = MgCl2 + H2O =>
MgO + 2 HCl = MgCl2 + H2O
Na2CO3(aq) + CoCl2 = CoCO3 + NaCl =>
Na2CO3(aq) + CoCl2 = CoCO3 + 2 NaCl
CoO = Co + O2 =>
2 CoO = 2 Co + O2
Sn + O2 = SnO =>
2 Sn + O2 = 2 SnO
HNO3 + NaOH = NaNO3 + H2O =>
HNO3 + NaOH = NaNO3 + H2O
HClO4 + P4O10 = H3PO4 + Cl2O7 =>
12 HClO4 + P4O10 = 4 H3PO4 + 6 Cl2O7
CaO + H2O = Ca(OH)2 =>
CaO + H2O = Ca(OH)2
Mg(OH)2 + H2SO4 = MgSO4 + H2O =>
Mg(OH)2 + H2SO4 = MgSO4 + 2 H2O
SnF2 + Na3PO4 = Sn3(PO4)2 + NaF =>
3 SnF2 + 2 Na3PO4 = Sn3(PO4)2 + 6 NaF
As2O3 + H2S = As2S3 + H2O =>
As2O3 + 3 H2S = As2S3 + 3 H2O
Na + Cl2 = NaCl =>
2 Na + Cl2 = 2 NaCl
KOH + HCl = KCl + H2O =>
KOH + HCl = KCl + H2O
P4 + O2 = P2O5 =>
P4 + 5 O2 = 2 P2O5
C7H6O3 + (CH3CO)2O = C9H8O4 =>
11 C7H6O3 + (CH3CO)2O = 9 C9H8O4
Au + Se = Au2Se =>
2 Au + Se = Au2Se
Sn + KOH = K2SnO2 + H2 =>
Sn + 2 KOH = K2SnO2 + H2
FeC2O4(H2O)2 + O2 = FeO + H2O + CO2 =>
2 FeC2O4(H2O)2 + O2 = 2 FeO + 4 H2O + 4 CO2
C2H3F3 + O2 = CO + HF =>
C2H3F3 + O2 = 2 CO + 3 HF
C7H14 = C7H8 + H2 =>
C7H14 = C7H8 + 3 H2
CaO + HCl = CaCl2 + H2O =>
CaO + 2 HCl = CaCl2 + H2O
CH3CH2CH(Cl)COOH + NH3 = CH3CH2CH(NH2)COOH + NH4Cl =>
CH3CH2CH(Cl)COOH + 2 NH3 = CH3CH2CH(NH2)COOH + NH4Cl
CuCl2(aq) + Na2S(aq) = CuS(s) + NaCl =>
CuCl2(aq) + Na2S(aq) = CuS(s) + 2 NaCl
N2O5 + Ba = BaO + N2 =>
N2O5 + 5 Ba = 5 BaO + N2
HN(CH2CH2OH)2 + H3PO4 = H2O + H2PO3N(CH2CH2OH)2 =>
HN(CH2CH2OH)2 + H3PO4 = H2O + H2PO3N(CH2CH2OH)2
Na2SO4(aq) + AlCl3(aq) = NaCl(aq) + Al2(SO4)3(s) =>
3 Na2SO4(aq) + 2 AlCl3(aq) = 6 NaCl(aq) + Al2(SO4)3(s)
As2O3 + H2O = H3AsO3 =>
As2O3 + 3 H2O = 2 H3AsO3
Li3N + NH4NO3 = LiNO3 + (NH4)3N =>
Li3N + 3 NH4NO3 = 3 LiNO3 + (NH4)3N
C57H110O6 + O2 = CO2 + H2O =>
2 C57H110O6 + 163 O2 = 114 CO2 + 110 H2O
C8H18 + O = CO2 + H2O =>
C8H18 + 25 O = 8 CO2 + 9 H2O
Zn + HCl = ZnCl2 + H2 =>
Zn + 2 HCl = ZnCl2 + H2
CO(NO3)2 + Na2SiO3 = COSiO3 + NaNO3 =>
CO(NO3)2 + Na2SiO3 = COSiO3 + 2 NaNO3
Al3 + Br8 = AlBr3 =>
8 Al3 + 9 Br8 = 24 AlBr3
K2S + H2SiO3 = H2S + K2SiO3 =>
K2S + H2SiO3 = H2S + K2SiO3
C7H14 + O = CO + H2O =>
C7H14 + 14 O = 7 CO + 7 H2O
NH3(aq) + O2(g) = HNO3(aq) + H2O =>
NH3(aq) + 2 O2(g) = HNO3(aq) + H2O
Na3N = Na + N =>
Na3N = 3 Na + N
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