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Mass is neither created nor destroyed. In a closed system, mass of reactants is equal to mass of products. Ex: 2 hydrogen plus 1 oxygen equals water

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A mixture in which one substance of microscopically dispersed insoluble particles is suspended throughout another substance. Ex: whipped cream, milk

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The temperature at which a liquid boils and turns to vapor.

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The temperature at which a liquid turns into a solid when cooled.

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The temperature at which a given solid will melt.

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Any change that occurs without altering the chemical composition of a substance. Ex: ripping a piece of paper, breaking a pencil

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Can be classified by its chemical properties:

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Can be classified by its chemical properties:

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Changing  irreversible chemical reaction involving the rearrangement of the atoms of one or more substances and a change in their chemical properties. Ex: rust on iron, water and salt

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It's physical and it can be separated (heterogenous). It's a type of heterogenous mixture. Ex: water and oil

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So much solute that the solvent cannot dissolve all of it. It's the darkest and strongest solution.

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least amount of solute and lightest in color. It's also the weakest solution.

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a liquid mixture in which the solute is mixed with the solvent.

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Able to dissolve other substances. Ex: water (strongest)

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The minor component in a solution, dissolved in the solvent. Ex: salt, sugar

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How many molecules are packed in a particular space. Density= mass/volume

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It's the amount of space that matter occupies.

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It's the measurement of the amount of matter in the object.

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This occurs when it's throughout the liquid. Ex: a pot of water on a stove reaches its boiling point.

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This occurs when it's on the surface of the liquid. Ex: a puddle dries up after a rain shower.

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The change from a liquid to a gas. Ex: liquids water changes into water vapor.

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Does not have a specific pattern.

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Has a specific pattern.

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Condensation is the opposite of vaporation. Ex: clouds form from water vapor in the sky.

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Particles of a solid do not pass through the liquid state as they form a gas. Ex: dry ice

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Particles of a gas do not pass through he liquid state as they form a solid. Ex: sub-freezing air

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When a liquid changes into a solid. Ex: water freezing into an ice cube.

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When a solid goes through the liquid phase, it's melting. Ex: an ice cube left out of the freezer and then beginning to melt.

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2 or more elements chemically combined. Ex: H2O= water, H2O2= hydrogen peroxide

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Can't see the different parts. Best mixed mixtures and solution is a homogeneous mixture. Appears the same throughout and it can be solids, liquids or gases. Ex: sugar water, salt water, kool aid, iced tea, mixtures of metal.

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Can see the different parts and can be easily separated. Least mixed. Doesn't appear throughout mixtures. Ex: M & Ms, trail mix, legos, chex mix, oil and water.

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2 or more different elements chemically combined in a set ratio.

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Combination of substances that can be physically separated.

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118+ elements of the PTE

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Can not be physically separated.

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Has no definite shape and volume and volume changes easily.

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Has no definite shape but has definite volume.

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Has a definite shape and volume.