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Ca(HCO3)2 + 4e → CaO + 2HCOO + O2−

Reduction of calcium hydrogencarbonate
Ca(HCO3)2Calcium hydrogencarbonate + 4eElectron
CaOCalcium oxide + 2HCOOFormate ion + O2−Oxide ion

Reduction of calcium hydrogencarbonate yields calcium oxide, formate ion, and oxide ion (Other reactions are here). This reaction is an oxidation-reduction reaction and is classified as follows:

Table of contents
  1. 1Reaction data
  2. 2Thermodynamic changes
  3. 3References
  4. 4Related reactions
  5. 5Related categories

Reaction data

Chemical equation

Reduction of calcium hydrogencarbonate
Ca(HCO3)2Calcium hydrogencarbonate + 4eElectron
CaOCalcium oxide + 2HCOOFormate ion + O2−Oxide ion

General equation

Reduction of reducible species
ReactantOxidizing agent + e
ProductReduction product

Oxidation state of each atom

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
Ca(HCO3)2Calcium hydrogencarbonate1
Oxidizing
eElectron4
Electron

Products

Chemical formulaNameCoefficientTypeType in general
equation
CaOCalcium oxide1
HCOOFormate ion2
Reduced
O2−Oxide ion1

Thermodynamic changes

Thermodynamic data of reactants

Chemical formulaStandard enthalpy
of formation
ΔfH°
kJ · mol−1
Standard Gibbs
energy of
formation
ΔfG°
kJ · mol−1
Standard
molar entropy
S°
J · K−1 · mol−1
Standard molar
heat capacity at
constant pressure
Cp°
J · K−1 · mol−1
Ca(HCO3)2
e

Thermodynamic data of products

Chemical formulaStandard enthalpy
of formation
ΔfH°
kJ · mol−1
Standard Gibbs
energy of
formation
ΔfG°
kJ · mol−1
Standard
molar entropy
S°
J · K−1 · mol−1
Standard molar
heat capacity at
constant pressure
Cp°
J · K−1 · mol−1
CaO (cr)-635.09[1]-604.03[1]39.75[1]42.80[1]
CaO (g)
HCOO
O2−
* (cr):Crystalline solid, (g):Gas

References

List of references

  1. 1
    Janiel J. Reed (1989)
    The NBS Tables of Chemical Thermodynamic Properties: Selected Values for Inorganic and C1 and C2 Organic Substances in SI Units
    National Institute of Standards and Technology (NIST)