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Table 5

Formation and destruction reactions for water.

No. Formation reaction

1 H2 + OH H2O + H
3 NH2 + NO N2 + H2O
6 H + CH3OH CH + H2O
7 H3O+ + HCN HCNH+ + H2O
9 H3O+ + e H2O + H
11 H2 + O H2O + e
12 H + OH H2O + hν
13 H + OH H2O + H
14 H2O# H2O (thermal desorption)
15 H2O# H2O (photodesorption)

No. Destruction reaction

1 H + H2O OH + H2
2 H + H2O H3O+ H2
3 C+ + H2O HCO+ + H
4 C+ + H2O HOC+ + H
5 Si+ + H2O SiOH+ + H
7 H+ + H2O H2O+ + H
8 H2O + hν OH + H
9 H2O + hν H2O+ + e
11 H2O + dust H2O# (adsorption)
12 CH + H2O CH2OH

Notes. The numbers in the first column correspond to the main formation/destruction channels indicated in Fig. 3.

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