Essay
The following experiments were carried out and observations recorded.
Expt.#1: copper metal was added to an aqueous solution of silver nitrate
Observation: The copper become coated with a substance.
Expt.#2: lead metal was added to an aqueous solution of copper(II)nitrate
Observation: The lead turned black and crumbled.
Expt.#3: zinc metal was added to an aqueous solution of lead(II)nitrate
Observation: The zinc appeared to fall apart.
Rank the metals from most active to least active.
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