5005 Praxis Practice Test Practice Question
The melting of an ice cube in a glass of water is an example of a
Correct Answer: A
Rationale: The melting of an ice cube in a glass of water exemplifies a physical change, as it involves a transition from solid to liquid without altering the chemical composition of water (H2O). In contrast, a chemical reaction (Option B) involves the formation of new substances, which does not occur in this scenario. A metabolic process (Option C) refers to biochemical reactions within living organisms, making it irrelevant here. Lastly, a decay mechanism (Option D) pertains to the breakdown of organic matter, which is not applicable to the melting of ice.
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