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Classification of Matter

Classification of Matter. Chapter 15. Composition of Matter – Sec. 1. ________________ Substances Same composition throughout Either an ___________________ or compound Element All _____________ type of atom Everything made of _____________________ Compound

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Classification of Matter

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  1. Classification of Matter Chapter 15

  2. Composition of Matter – Sec. 1 • ________________ Substances • Same composition throughout • Either an ___________________ or compound • Element • All _____________ type of atom • Everything made of _____________________ • Compound • Atoms of two or more elements __________________________ bonded together

  3. Composition of Matter • ________________ • Made of two or more substances that can be easily separated by ________________ means • Heterogeneous Mixture • ________________ materials can be seen easily • _____________ , concrete, vegetable soup • Homogeneous Mixture (Solution) • Blended ________________ throughout • ____________, Kool-aid

  4. MATTER Can it be separated? no yes Mixture Air, sugar water, stainless stell Mixture Granite, wood, blood Water, sodium chloride Gold, aluminum

  5. Mixtures • __________________ ~ heterogeneous • Particles larger than solution but __________ heavy enough to settle out • Milk, paint, fog and ______________ • Detecting Colloids • Pass a beam of light through it • Colloid – ____________ beam • ____________________ – Cannot see beam • Particles big enough to scatter light – ________________ Effect

  6. Mixtures • ___________________ ~ heterogeneous • Not solution, not colloid • Muddy _______________ water • Heterogeneous mixture with a liquid and visible particles that _________________

  7. Properties of Matter Section 2

  8. Physical Properties • Def: characteristic observed _________________ changing the identity of the material • Ex: color, ______________, size, density • Appearance • _________________ • Magnetic, malleable, flow of liquid

  9. Separating Mixtures • Sand and Rock mixture? • Filter or _______________ • Iron filings and Aluminum mixture? • ________________

  10. Physical Change • Change in _____________, shape or state of matter and identity is same • Solid to a liquid? • __________

  11. Gas Liquid Solid

  12. Physical Change • How to get pure water from salt water? • ____________________ – evaporate liquid and then recondense it

  13. Chemical Properties and Changes • Chemical Property – can be observed only by ______________ the substance • Flammability, reactivity, decomposition • Chemical Change – change where a __________ substance is formed • Weathering – Physical or Chemical Change? • ___________

  14. Law of Conservation of Mass • Matter is neither _______________ nor destroyed during a chemical reaction • Mass of all substances _____________ = mass of all substances after change

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