The Following Experiments Were Carried Out and Observations Recorded

question 136

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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Definitions:

Belief Perseverance

The tendency to maintain one's belief even after it has been discredited by new evidence.

Additional Evidence

Supplementary information or data that supports or clarifies an argument, claim, or hypothesis.

Belief Perseverance

A cognitive phenomenon where individuals stick to their initial beliefs even when faced with new, contradictory evidence.

Unanimous Verdict

A legal decision where all jurors agree on the verdict in a court case.