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Solnce55 [7]
3 years ago
10

Are these correct? Also, what is number 7?

Chemistry
2 answers:
crimeas [40]3 years ago
4 0
The protons and neutrons
Leona [35]3 years ago
4 0
Number 7. the answer is Protons and Neutrons
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d) 2, 4-Dimethylpentane

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Which of the following most likely happens during a physical change?
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A. New atoms are introduced in the molecules of the substance.

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