Given the key: Which particle model diagram represents a chemical change?
- Mayya Alocci
- Jul 21, 2023
- 1 min read
January 2018 NY Regents Chemistry Exam
41 Given the key:
Which particle model diagram represents a chemical change?
Solution: A chemical change occurs when the identity of a substance changes. In choice 4 we go from the molecules with one white circle and two black circles to two different molecules, one with two black circles and another with two white circles.
Answer: 4
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