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Matter
描述
Chemistry is the study of matter. Matter can be anything that has mass and takes up space. In this video we learn the definition of matter, and define pure substance, element, compound, and homogeneous mixtures -- also known as solutions -- and heterogeneous mixtures. We also distinguish between chemical and physical changes. \r
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Learn chemistry in 10 minute easy-to-understand videos.
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Learn chemistry in 10 minute easy-to-understand videos.
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