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Feliz [49]
2 years ago
14

Which of the following is the most reactive?

Chemistry
1 answer:
mezya [45]2 years ago
4 0

4. Rubidium

I believe :)

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Explain how particles move before during and after melting
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Particles would move more freely, while still staying close together depending on the shape of the liquid

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Melting is the process of going from a solid to a liquid due to the increase in heat/energy. This increase in heat/energy increases the speed at which the atoms within the object moves. Lets say we had an ice cube. While it is a cube, the particles inside the cube are slow and compact, staying close together.

When enough energy is gained, this makes the particles begin to move faster, gaining heat and energy which results in the ice cube melting and moving more freely than normal.

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What is a chemical reaction<br>thnx a lot​<br><br>hlo ◇3◇
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A process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in <u><em>physical form or a nuclear reaction.</em></u>

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