Vocab
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| kinetic theory | all matter consists of tiny particles that are in constant motion
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| vacuum | an empty space with no particles nor pressure
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| atmospheric pressure | collisions of atoms and molecules in air with objects
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| barometer | device that is used to measure atmospheric pressure
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| evaporation | when vaporization occurs at the surface of a liquid that is not boiling
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| vapor pressure | measure of the force exerted by a gas above a liquid
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| boiling point | temperature at which the vapor pressure of the liquid is just equal to the external pressure on the liquid
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| normal boiling point | boiling point of a liquid at a pressure of 101.3 kPa
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| melting point | temperature at which a solid turns into a liquid
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| crystal | particles are arranged in an orderly repeating, three dimensional pattern called a crystal lattice
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| unit cell | smallest group of particles within a crystal that retains the geometric shape of a crystal
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| allotropes | 2 or more different molecular forms of the same element in the same physical state
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| amorphous solid | lacks an ordered internal structure
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| sublimation | change of a substance from a solid to a vapor without passing through the liquid state
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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