Respuesta :
B. Magnesium + Hydrogen Sulfide (Reactors) ----> Magnesium Sulfide + Hydrogen (Products)
Answer:
B. Mg + [tex]H_{2}S[/tex] ⇒ MgS + [tex]H_{2}[/tex]
Explanation:
There are several types of chemical reactions depending on the reaction mechanisms: combination, single-displacement, double-displacement, combustion, decomposition, combustion and redox reactions.
In this case we have a single-displacement reaction, which means that a new chemical species (Mg) replaces other (H) in a given chemical compound ([tex]H_{2}S[/tex]). It happens because the electronegativity of H (a nonmetal) is greater than the Mg electronegativity. Thus H attracts the electrons strongly.
That's why there is a transference of electrons from Mg to [tex]H^{+}[/tex]. We can say that Mg reduces [tex]H^{+}[/tex].
Once [tex]H^{+}[/tex] is reduced to H, a covalent bond is formed between two hydrogen atoms, and then [tex]H_{2}[/tex] is released as a gas.
