Chapter 3.docx - Chapter 3 Matter and Energy I In your Room...

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Chapter 3: Matter and Energy I. In your Room: A. What are things made of? 1. Things are made of matter B. Examples of matter 1. Air, water, desk, wood, steel, and plastic II. What is matter? A. Matter is anything that occupies space and has mass 1. Examples of matter a) Some are visible to the eye (1) Steel, water, wood, plastic b) Others are not visible (1) Air and microscopic dust B. All Matter is composed of atoms 1. Atoms a) submicroscopic particles, they are the fundamental building blocks of matter 2. Molecules a) Atoms are bonded together to form molecules b) Two or more atoms joined to one another in specific geometric arrangement III. Classifying Matter According to its State: Solid, Liquid, and Gas
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A. Solid 1. Atoms/Molecules a) Packed close to each other in fixed location 2. Shape a) Rigid 3. Volume a) Fixed 4. Examples a) Ice, diamond, quartz, and iron 5. Solids matter can be described as: a) Crystalline (1) Atoms or molecules arrange in geometric patterns with long-range, repeating order (2) Examples- salt and diamond- geometric, cubic shape b) Amorphous (1) Atoms or molecules do not have long-range order (2) Glass, rubber, and plastic B. Liquid 1. Atomic/ Molecular Spacing a) Close together, but they are free to move around and by each other 2. Volume a) Fixed volume because their atoms or molecules are in close contact
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3. Shape a) Indefinite (1) Liquids assume the shape of their container
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  • Summer '17
  • Maria Monzon Medina
  • Chemistry

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