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Matter_and_Change

Matter_and_Change - Chapter2 ,orstuff contains

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Chapter 2
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Matter is the general term for all the things that can  be described as materials, or “stuff” Matter is anything that has mass and occupies space Mass   a measure of the amount of matter the object  contains Volume   a measure of the space occupied by the object Because living and nonliving things are made of  matter, chemistry affects all aspects of life
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Describing Matter Properties used to describe matter can be classified as  extensive or intensive Extensive properties   property that depends on the amount  of matter in a sample Mass Volume Intensive properties  property that depends on the type of  matter in a sample, not the amount of matter Density Hardness
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The three states of matter are solid, liquid, and gas Solid   a form of matter that has a definite shape and  volume Particles of matter are packed tightly together Liquid   a form of matter that has an indefinite shape yet  has definite volume Particles of matter are free to flow from one location to  another Gas   a form of matter that has both indefinite shape and  volume Particles of matter are spread apart
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The terms vapor and gas are sometimes used  interchangeably, but there is a difference “gas” is used for substances that exist in the gaseous state  at room temperature Oxygen Nitrogen Helium “vapor” is use for substances that are generally a liquid or  solid at room temperature Water Vapor
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Substance 
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