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List the metals that reacted with HCl in order of decreasing reactivity (most reactive metal first): Al, Zn, Cu, Sn

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Alyssa Mae Remarim
Alyssa Mae RemarimLv10
21 Dec 2020

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Related questions

Reactivty of Ni, Cu, Zn, Fe, Al, Mg with H+

a) Which metals show a definite reaction with HCl?

b) Arrange these metals in decreasing order of reactivity.

c) Write the balanced reaction between Mg and HCl. Identify the reaction type. (Reduction or oxidation?)

The following metals are in order from most reactive to least reactive:

1. Zn, 2. Pb, 3. Cu, 4. Ag

Could someone please explain to me why their cations are in the OPPOSITE order in respect to reactivity?

4.

In a series of chemical test reactions the following observations were made when several metallic ele­ment samples were treated with 3.00 M hydrochloric acid solution. Zn: metal dissolves, hydro­gen gas is emitted. Cu: no reaction. Ag: no reaction. Mg: metal dissolves, hydrogen gas is emitted. Mn: metal dissolves, hydrogen gas is emitted. Which statement below is true?

A.

Mg, Mn, Zn are more reactive than Ag, Cu; but less reactive than H2.

B.

Mg, Mn, Zn are less reactive than Ag, Cu; but more reactive than H2.

C.

Mg, Mn, Zn are more reactive than Ag, Cu; and more reactive than H2.

D.

Mg, Mn, Zn are less reactive than Ag, Cu; and less reactive than H2.

E.

These observations are insufficient to form any judgment about relative reactivity of any of the elements tested.

my answer key states that the answer is B but im just confused why because according to the activity series of metals, Mg, Mn and Zn are more reactive than Cu and Ag

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