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In a laboratory investigation, magnesium reacts with hydrochloric acid to produce hydrogen gas and magnesium chloride. This reaction is represented by the unbalanced equation below.


Mg(s) + HCl(aq) ==>H2(g) + MgCl2(aq)


State, in terms of the relative activity of elements, why this reaction is spontaneous.

Verified Answer :

Oseni

The reaction depicted by the equation would be spontaneous because Mg is higher in reactivity than H.

Reactivity series of cations

The reactivity series of anions is such that: K, Na, Ca, Mg, Al, Zn, Fe, Sn, Pb, and H.

Ions at the higher position in the reactivity series are able to displace those in lower positions in chemical reactions. Whereas, those in lower positions cannot displace those in higher positions.

Mg is far higher than H in the reactivity series, and thus, will be able to displace H from HCl without any forceful procedure.

More on the reactivity series can be found here:https://brainly.com/question/14652325

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