A galvanic (voltaic) cell has the generic metals X and Y as electrodes. X is more reactive than Y, that is, X more readily reacts to form a cation than Y does. Classify the descriptions by whether they apply to the X or Y electrode.

(a) anode

(b) cathode

(c) electrons in the wire flow toward

(d) electrons in the wire flow away

(e) cations from salt bridge flow toward

(a) X electrode

(b) Y electrode

(c) Y electrode

(d) X electrode

(e) Y electrode

Explanation:

A galvanic (voltaic) cell has the generic metals X and Y as electrodes. X is more reactive than Y, that is, X more readily reacts to form a cation than Y does.

In the X electrode occurs the oxidation whereas in the Y electrode occurs the reduction.

Oxidation: X (s) → X⁺ⁿ (aq) + n e⁻

Reduction: Y⁺ˣ (aq) + x e⁻ → Y (s)

Classify the descriptions by whether they apply to the X or Y electrode.

(a) anode. Is where the oxidation takes place (X electrode).

(b) cathode. Is where the reduction takes place (Y electrode).

(c) electrons in the wire flow toward. Electrons in the wire flow toward the cathode (Y electrode).

(d) electrons in the wire flow away. Electrons in the wire flow away from the anode (X electrode).

(e) cations from salt bridge flow toward. Cations from the salt bridge flow toward the cathode (Y electrode) to maintain the electroneutrality.