Sapling Learning An experiment was performed to test the relative activities of

Question

Sapling Learning An experiment was performed to test the relative activities of four metals, A, B, C, and D. Each solid metal was mixed solutions of each of the other cations as shown in this chart. The results were A (aa) Y indicated as follows. N N Y yes a reaction occured Blag NE no a reaction did not occur For example, when A (aq) was mixed with B(s), a reaction occured. C (ag) Use this data to rank the neutral metals according to their activity. D (ag) Most reactive Least reactive A Previous Give up & view Souson Check Answer ONext 1Exit Hint a

Explanation / Answer

For a metal to be "very stable"

is must go from ionic state to solid state

so..

A+(aq) --> always reacted with B,C and D, meaning it is the most stable, i.e. LEAST REACTIVE

B+ A(s) = no reaction

B+ C(s) = no reaction

B+ D(s) = no reaction

also

C+(aq) + A(s) = no reaction

C+(aq) + A(s) = no reaction

Then

in general

B+ less reactive than C(s) and D(s)

C+ less reactive than D(s) but more reactive than

So

A < D < C < B

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