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Chemical Reactions TEAS Practice Questions
Free Chemical Reactions practice questions for the TEAS exam with detailed rationales.
Question 1 of 2
How can you identify that a chemical reaction has occurred?
Physical signs such as heat and light emission, precipitate formation, gas evolution, or a change in appearance are observed.
The substance dissolves in water without any change in properties.
There is no change in temperature, color, or state of matter.
The substance remains unchanged in appearance and properties.
Rationale
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