Why is knowledge of the activity series crucial in choosing which metal to build things with?

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10-11-2021
Chemistry

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Why is knowledge of the activity series crucial in choosing which metal to build things with?

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Apinke123 Apinke123 · Answer 1 · 2021-11-10T07:34:04+01:00

Answer:

activity series is a list of substances ranked in order of relative reactivity.

For example, magnesium metal can displace hydrogen ions from solution. So magnesium is more reactive than hydrogen:

Mg(s) + 2H⁺(aq) → H₂(g) + Mg²⁺(aq)

Zinc metal can also displace hydrogen ions from solution:

Zn(s) + 2H⁺(aq) → H₂(g) + Zn²⁺(aq)

so zinc is also more active than hydrogen.

But magnesium metal can displace zinc ions from solution:

Mg(s) + Zn²⁺(aq) → Zn(s) + Mg²⁺(aq)

so magnesium is more active than zinc.

The activity series including these elements would be Mg > Zn > H.

Chemists have built up a complete activity series in a similar way.

The most active metals are at the top of the table; the least active are at the bottom.

Any metal that is higher in the series will displace a metal that is below it in a

adioabiola adioabiola · Answer 2 · 2021-11-16T16:09:02+01:00

The knowledge of the activity series in choosing which metal to build things with because; it provides a basis for determining which metal ion is able to displace the other upon chemical interaction.

The choice of building material is a very important design consideration.

This is so because careful consideration must be taken while deciding which metal to build things with as the reactivity of metals vary.

This variation is carefully quantified by the position of metals on the activity series.