Multiple Choice
When a less reactive metal is added to a solution containing a salt of a more reactive metal, what is the expected outcome?
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6. Chemical Quantities & Aqueous Reactions
Activity Series
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According to the activity series, which of the following metals is the most easily oxidized?
A
Cu (copper)
B
K (potassium)
C
Au (gold)
D
Ag (silver)
Verified step by step guidance1
Understand that the activity series is a list of metals ranked by their tendency to lose electrons and undergo oxidation. Metals higher in the series are more easily oxidized.
Recall that oxidation involves the loss of electrons, so the metal that is most easily oxidized will be the one that loses electrons most readily.
Identify the metals given: Cu (copper), K (potassium), Au (gold), and Ag (silver).
Refer to the activity series chart, where potassium (K) is placed near the top, indicating it is highly reactive and easily oxidized, while copper, silver, and gold are lower, meaning they are less easily oxidized.
Conclude that potassium (K) is the most easily oxidized metal among the options because it is highest in the activity series.
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