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30 Cards in this Set
- Front
- Back
Anything that has mass and take up space
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Matter
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State that energy cannot be created or destroyed but can be changed from one form to another
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Law of Conservation
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The SI base unit used to measure the amount of a substance whose number of particles is the same as the number of atoms of carbon in exactly 12 gram of carbon-12
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Mole
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The smallest unit of an element that maintains the properties of that element
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Atom
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the smallest unit of a substance that keeps all of the physical and chemical properties of that substance; it can consist of one atom or two or more atom bonded together.
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Molecule
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a substance that cannot be separated or broken down into simpler substances by chemical means; all atoms of an element have the same atomic number. Can not be broken down chemically
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Element
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A substance made up of atoms of two or more different elements joined by chemical bonds
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Compound
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A measure of the amount of matter in an object; fundamental property of an object that is not affected by the forces that act on the object, such as the gravitational force
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Mass
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a measure of the gravitational force exerted on an object; its value can change with the location of the object in the universe
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Weight
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A property of matter that descrives a substance's ability to participate in chemical reactions
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Chemical Property
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A change of matter from one form to another without a change in chemical properties
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Physical Property
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A change that occurs when one or more substances change into entirely new substances with different properties
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Chemical change
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a change of matter from one form to another without a change in chemical properties
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Physical change
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the energy transferred b/w objects that are at different temperatures; energy is always transferred from higher-temperature objects to objects
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Heat
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A measure of how hot (or cold) something is; specifically, a measure of the average kinetic energy of the particles in an object
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Temperature
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a description of how close a measurement is to the true value of the quantity measured
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Accuracy
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the exactness of a measurement
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Precision
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good conductor of heat and electricity, metallic luster, shiny, malleability, ductibility, most exist solid in room temperature
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Metal
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ability to form into different shapes by hammering
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Malleable
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ability to be drawn into "wire" form
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ductile
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have both non-metal and metal characteristic, is brittle, metallic luster and poor conductor
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Semi-Metal
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wide range of characteristics, poor conductor of heat
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Non-Metal
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the physical forms of matter, which are solid, liquid, gas
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States of Matter
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definite shape and volume, fixed atoms, regular geometric patter
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solid
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no definite shapes but definite volume
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liquid
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no definite shape or volume, random particle motion
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gas
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a sample of matter, either a single element or a single compound, that has definite chemical and physical properties
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Pure Substance
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A combination of two or more substances that are not chemically combined
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Mixture
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Describes something that has a uniform structure or composition throughout (pure mixed)
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Homogeneous
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composed of dissimilar componet (uneven mixed)
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Heterogeneous
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