11. A. Balance the following chemical reaction.
H2 (g) + 12 (g) + heat → HI(g) AG = +237
B. Is the reaction endothermic or exothermic? Why?
C. Is the reaction spontaneous? Why?
D. What type of reaction is this? (Synthesis, Decomposition, or Exchange)

50? i have no !

Electron equations of the given changes are as follow,a)                              cu      →      cu⁺²  + 2e⁻b)                              mg⁺²  +  2 e⁻      →      mgc)                              cl⁻    →      cl  +  1e⁻d)                              s  +  2 e⁻    →      s²⁻e)                                o²⁻      →      o  +  2 e⁻f)                              p  +  3 e⁻    →      p³⁻g)                              fe²⁺    →      fe³⁺  + 1 e⁻h)                              s²⁻    →      s⁴⁺  +  6 e⁻

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