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並前往http://chemistry-reference.com/reaction.asp?rxnnum=450

2 Na (s) + 1 Cl2 (g) → 2 NaCl (s) - Stoichiometry - Chemistry ...

[2ΔHf(NaCl (s))] - [2ΔHf(Na (s)) + 1ΔHf(Cl2 (g))] [2(-410.99)] - [2(0) + 1(0)] = -821.98 kJ -821.98 kJ (exothermic). Entropy Change.

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