Chemistry, 16.10.2020 16:01 alexandergoetz4857
Which of the following best describes a physical change?*
A. When a new element is created.
B. When molecules combine to form a compound.
C. When elements combine to form a molecule.
D. When the size, shape, or state of matter changes.
Answers: 2
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Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct
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7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '
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Chemistry, 23.06.2019 02:00
The point along a planet's orbit where it is closest to the sun is called the
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Which of the following best describes a physical change?*
A. When a new element is created.
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