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July 4, 2015

Homework Help: Science

Posted by anne on Monday, January 26, 2009 at 8:57pm.

1) Instead of using the word "random",is it acceptable to say particles in a liquid move about in "different" directions?

2) Why does ice have a higher density than water vapour? Is it because ice has a greater mass in a fixed volume?

3) The statement "Particles in a gas are lighter than particles in a solid." is incorrect. Is it because a particle in a gas has the same mass as a particle in a solid and the difference is that a solid has more particles than a gas?

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