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Arlecino [84]
3 years ago
9

Identify each change as either physical or chemical breaking a pencil in half

Chemistry
2 answers:
Svetradugi [14.3K]3 years ago
7 0
Answer:
Breaking A Pencil In Half - Physical Change


You are changing the form of the pencil. You aren't turning it into something else like an eraser, you are just changing it's form. It still has the same use just looks and feels differently.

-Brainly Answerer
Vesna [10]3 years ago
3 0
It is a physical change because you are not changing any of its properties. You still have a pencil, just slightly smaller. If you are only changing the shape and not the properties of a substance, it is a physical change
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Answer:

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Explanation:

The isotope notation is:

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<em>Where a is the mass number = Number of protons + Number of neutrons</em>

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The atomic number define the nature of the atom, the element with atomic number = 15 is phosphorus, P:

^a_bP

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^{31}_{15}P is the isotopic notation of the atom.

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