Chemistry Unit 2 Vocabulary
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Chemistry | Study of composition of matter and the changes it undergoes
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| Matter | Anything that has mass and takes up space
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| Pure Substance | Has fixed composition
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| Pure Substance | Every sample has exactly same characterisitic, properties and composition
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| Solid | Definite volume, definite shape
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| Solid | Definite pattern to shape
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| Solid | Held together by strong attractive forces
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| Solid | Particles don't move much
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| Solid | Particles packed together in relatively fixed positions
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| Liquid | Definite volume, indefinite shape
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| Liquid | Take shape of container
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| Liquid | Particles close together but can move past one another
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| Liquid | Particles move more rapidly than particles in a solid and causes them to flow b/c they temporarily overcome attractive forces
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| Liquid | No pattern to shape
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| Gas | Indefinite volume, indefinite shape
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| Gas | expand to fill container & takes its shape
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| Gas | Particles move quickly than particles in a liquid and at great distances from one another
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| Gas | Has weak attractive forces
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| Plasma | High-temp. state of matter in which atoms lose electrons
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| Plasma | Found in fluorescent bulbs and the sun
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| Physical Property | Characterisitic observed or measured w/out changing identity of substance
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| Physical Property | Describes substance itself rather than how it can change into other substances
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| Extensive Properties | Dependent on amt of substance present
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| Extrinsic Properties | Dependent on amt of substance present
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| Extensive Properties | Examples include length, volume and mass
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| Extrinsic Properties | Examples include length, volume and mass
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| Intensive Properties | Independent of amt of substance present
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| Intrinsic Properties | Independent of amt of substance present
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| Intensive Properties | Examples include color, density and smell
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| Intrinsic Properties | Examples include color, density and smell
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| Density | Physical property that is a ratio of mass of object to volume
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| Density | units usually used are g/cm3 or g/mL
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| Density | D = M/V
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| Physical Change | Change in substance that doesn't involve change in identity of substance
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| State Change | Physical change; substance changes from 1 physical state to another
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| Phase Change | Physical change; substance changes from 1 physical state to another
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| Chemical Property | Relates to substance's ability to undergo changes that transform it into different substances
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| Chemical Property | Change where 1+ substance(s) converted into different substance(s)
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| Chemical Change | Change where 1+ substance(s) converted into different substance(s)
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| Reactants | Substance that reacts
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| Products | Substance that's formed
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| Reactants | On left side of equation
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| Products | On right side of equation
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| Filtration | Technique of separating heterogeneous mixtures by passing the mixture through a filter
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| Filtration | Usually used to separate solid from liquid
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| Distillation | Technique used to separate homogeneous liquid mixtures where the liquid mixture is boiled to produce vapor and then condensed again to liquid
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| Distillation | Used for liquids w/ similar boiling points
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| Chromatography | Method for separating homogeneous mixtures (such as ink)
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| Chromatography | Separates mixtures into their different components
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| Element | Made of only 1 kind of atom
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| Element | Simplest forms of matter that can exist under normal laboratory conditions
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| Atom | Smallest particle of element that retains the properties of that element
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| Law of Conservation of Mass | In any chemical or physical change, mass isn't created or destroyed
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| Law of Conservation of Mass | mass reactants = mass products
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| Periodic Table | Tool used to organize elements into a grid of horizontal rows and vertical columns
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| Crystallization | Technique used to separate mixtures that separates the components of a mixture based on the ability of each component to travel or be drawn across the surface of another material
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Created by:
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