explain the reactivity of acid with metals with a neat diagram
Answers
Answer:
An acid-metal reaction typically results in a salt and the release of hydrogen gas if the metal is placed above hydrogen in the reactivity series.
An example would be of magnesium and hydrochloric acid.
Mg+2HCl→MgCl2+H2
This is a single displacement reaction where the anion from the acid (Cl
−
) recombines with the metal to form the salt (MgCl
2
). In this case, Mg
+2
and Cl
−
ions form MgCl
2
and hydrogen gas is released.
It should be kept in mind that hydrogen is a diatomic element and will always be H
2
in its gaseous phase.
(ii) If the metal is placed below hydrogen in the reactivity series, then it cannot displace hydrogen from its acid and thus, no reaction takes place between the two.
To take an example of this, a reaction between copper and hydrochloric acid does not take place as copper is placed below hydrogen in the reactivity series.
Cu+HCl→ No reaction
Explanation:
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