Which is a sensory indicator of chemical reactions?

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Multiple Choice

Which is a sensory indicator of chemical reactions?

Explanation:
Peculiar smells are a direct sensory cue that a chemical process may be occurring. Many reactions release or form volatile substances that have distinctive odors, alerting you that something is changing in the environment. While heat changes can also signal a reaction and fire conditions can imply reaction activity, odors provide a clear, immediate indication that something hazardous may be evolving, which is why this option is the best fit.

Peculiar smells are a direct sensory cue that a chemical process may be occurring. Many reactions release or form volatile substances that have distinctive odors, alerting you that something is changing in the environment. While heat changes can also signal a reaction and fire conditions can imply reaction activity, odors provide a clear, immediate indication that something hazardous may be evolving, which is why this option is the best fit.

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