molecule - A group of atoms covalently bonded together, element - A pure substance made of only one kind of atom, atom - Basic unit of matter, matter - Anything that has mass and takes up space, compound - A pure substance made of two or more elements that are chemically combined in a specific ratio, mixture - Two or more substances, elements, compounds, or both, that are physically combined, neutron - A particle that is electrically neutral in the nucleus of an atom, Homogeneous mixture - A mixture that has the same uniform appearance and composition throughout. Also known as a solution., Heterogeneous mixture - A mixture that consists of visibly different substances or phases of matter., Physical Property - A characteristic that can be observed without producing new substances, Chemical Property - A characteristic that is observed after a chemical reaction occurs., Physical Change - A transformation that does not produce a new substance., Chemical Change - A transformation of a substance that produces at least a new substance., Intensive Property - A characteristic that is independent (not dependent) of the quantity (amount) of matter in a sample., Extensive Property - A characteristic of matter that is dependent on quantity (amount) of matter in the sample.,

Chemistry Vocabulary Review

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