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27 Cards in this Set
- Front
- Back
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gas
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has no fixed volume or mass; rather it conforms to the volume and has no shape of its container.
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solid
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has both a difinite shape and volume.
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liquid
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has a distinct volume independent of its container but has no specific shape; it assumes that shape of the container that it occupies.
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states of matter
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solid, liquid, and gas.
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elements
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can't be decomposed into simper substance. the molecular level, is composed of only one kind of atom.
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compounds
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substances that composed of two or more atoms.
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mixture
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a mixture is the combination of two or more substances in which each substance retains its own chemical identity.
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pure substance
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is matter that has distinct properties and a composition that doesn't vary from sample to sample.
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solutions
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mixtures are uniform throughout. when things dissolve in water like salt and sugar and other substances.
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physical properties
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the indivisal molecules enjoy being near each other but their fundamental chemical structure does not change when they entire a mixture.
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dissolved
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salt dissolves in water when a substance melts.
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melting point
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a temperature at which a substance melts.
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gravity
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is a force that pulls things towards the center of the earth.
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solvent
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the solvent is doing the dissolving.
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matter
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anything that takes up matter and has weight.
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periodic table
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is a table listing all the elements that consist of one atom.
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alloys
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are basically a mixture of two more metals.
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temperature
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how hot or cold something is.
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pressure
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the exertion of force upon a surface by an object, fluid etc., in contract with it. ex. the pressure of earth against a wall.
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structure
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mode of building , constructing, or organization; arrangement of parts, element or constituents.
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amalgams
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are two special types of alloy. ex. like to think mercury.
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calcium
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a silvery-white divalent metal.
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physical forces
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a force is a push or pull upon an object resulting from the objects interaction with another object.
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chemical forces
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are forces generated by other compounds or molecules that act on substances.
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reactive
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sodium is very reactive.
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solubility
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the amount of solute that can be dissolved by the solvent is defined as solubility.
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molecules
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a general term to describe atoms stuck to each other.
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