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ycow [4]
3 years ago
10

Explain what happens to the particles in a substance during a physical change.

Physics
2 answers:
omeli [17]3 years ago
7 0

Answer:

In physical changes no new materials are formed and the particles do not change apart from gaining or losing energy. ... Particles stay the same unless there is a chemical change whether the matter is solid, liquid or gas. Only their arrangement, energy and movement changes.

Explanation:

Hope this helps

Soloha48 [4]3 years ago
4 0

Answer:

During Physical Change there would be a re-arrangements of atoms or molecules, changes of the arrangement may be change in the distance between atoms or molecules, change in the crystal form, .....etc

Explanation:

A physical change is any change not involving a change in the substance's chemical identity. Matter undergoes chemical change when the composition of the substances changes: one or more substances combine or break up (as in a relationship) to form new substances.Physical changes occur when objects undergo a change that does not change their chemical nature. A physical change involves a change in physical properties. Physical properties can be observed without changing the type of matter. Examples of physical properties include: texture, shape, size, color, odor, volume, mass, weight, and density.

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The​ half-life of a certain radioactive substance is 12 hours. There are 19 grams present initially. a. Express the amount of su
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(a) N=19\times e^{-\lambda t}

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Explanation:

half life, T = 12 hours

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(a) Let N be the amount remaining after time t.

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\lambda =\frac {0.6931}{T}

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