Question

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Answer 1

Answer:

Reactivity is a series of elements in which all elements are arranged in decreasing order of their reactivity.

The reactivity series is ::

1. K
2. Na
3. Ca
4. Mg
5. Al
6. Zn
7. Fe
8. Pb
9. H

Explanation:

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Answer 2

Answer:

reactivity series is the series of metals based on there reactivity from highest to lowest . so reactivity of metal can be defined as a series of metals in order of reactivity from highest to lowest . It is also known as activity series, so they can be removed easily.

K(s) + H2O(l) → KOH + ½H2O