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10 Cards in this Set
- Front
- Back
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element
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matter in which all the atoms are a like
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compound
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matter that is a combination of atoms of two or more elements
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heterogeneous mixture
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a mixture in which different materials are distributed unevenly, any place in the mixture different combinations of materials occur
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homogeneous mixture
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mixture in which different materials are blended evenly. so that the mixture is the same throughout; also called a solution
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physical property
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any characteristic of a material that you can observe; state, shape, size or color
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physical change
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change in a substance's size, shape, color or state
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chemical change
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change of one substance to another by changing the elements or change their proportions
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law of conservation of mass
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law stating that the mass of all substances involved in a chemical change will be the same after the change; matter is neither created nor destroyed during a chemical change
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chemical symbol
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shorthand way to write the name for an element
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nucleus
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positively charged center of an atom
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