Classification of Matter
Take out your powerpoint (HW due today) so I can come around and check it On your own (you will get the chance to discuss ...
Matter Pure Substances Mixtures Let’s breakdown…
Matter Pure Substances Mixtures Elements 1 type of atom Compounds 2 or more  types of atoms  bonded Homogeneous Mixture He...
Matter Pure Substances Mixtures Elements 1 type of atom Compounds 2 or more types of atoms  bonded Homogeneous Mixture Het...
So which one are they?  Element? Compound? Or Mixture (homogeneous or heterogeneous? <ul><li>The air you breathe </li></ul...
Matter Pure Substances Mixtures Elements 1 type of atom Compounds 2 or more types of atoms  bonded Homogeneous Mixture Het...
Properties of Matter Chemical Property   – relates to substance’s ability to undergo change that transforms it into a diff...
Physical Change vs. Chemical Change <ul><li>Physical Change   </li></ul><ul><ul><li>does not change chemical character/com...
Follow-up questions <ul><li>When separating iron from the mixture, what physical property did you make use of? </li></ul><...
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Classification Of Matter Final Upload

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Classification Of Matter Final Upload

  1. 1. Classification of Matter
  2. 2. Take out your powerpoint (HW due today) so I can come around and check it On your own (you will get the chance to discuss with a partner LATER), decide if the following are elements, compounds or mixtures <ul><li>The air you breathe </li></ul><ul><li>Salad dressing </li></ul><ul><li>Milk </li></ul><ul><li>Gold necklace </li></ul><ul><li>Sugar </li></ul><ul><li>Kool-aid </li></ul><ul><li>Concrete </li></ul>
  3. 3. Matter Pure Substances Mixtures Let’s breakdown…
  4. 4. Matter Pure Substances Mixtures Elements 1 type of atom Compounds 2 or more types of atoms bonded Homogeneous Mixture Heterogeneous Mixture 1 phase 2 or more phases (Solution)
  5. 5. Matter Pure Substances Mixtures Elements 1 type of atom Compounds 2 or more types of atoms bonded Homogeneous Mixture Heterogeneous Mixture 1 phase 2 or more phases (Solution) Remember: Bonded together Just mixed up Mixed chunks you can see (not uniform) Mixed up completely (uniform) in whole # ratios – cannot be broken down using physical means! uniform and definite composition physical blend of two or more components
  6. 6. So which one are they? Element? Compound? Or Mixture (homogeneous or heterogeneous? <ul><li>The air you breathe </li></ul><ul><li>Salad dressing </li></ul><ul><li>Milk </li></ul><ul><li>Gold necklace </li></ul><ul><li>Sugar </li></ul><ul><li>Kool-aid </li></ul><ul><li>Concrete </li></ul>
  7. 7. Matter Pure Substances Mixtures Elements 1 type of atom Compounds 2 or more types of atoms bonded Homogeneous Mixture Heterogeneous Mixture 1 phase 2 or more phases (Solution) uniform and definite composition physical blend of two or more components
  8. 8. Properties of Matter Chemical Property – relates to substance’s ability to undergo change that transforms it into a different substance ( change in matter ) Physical Property – characteristic that can be observed without changing the identity of the substance ( no change in matter ) Extensive – depends on the AMOUNT of a substance present (ex. Length, mass, volume, solubility) Intensive – does not depend on the amount of a substance present but on the TYPE of matter (ex. Density, malleability, conductivity, color, melting point, boiling point) Ex: Burn, rust, explode
  9. 9. Physical Change vs. Chemical Change <ul><li>Physical Change </li></ul><ul><ul><li>does not change chemical character/composition of the substance </li></ul></ul><ul><ul><li>ex. Pounding…tearing into pieces…pulling…melting a substance…heating…boiling a substance </li></ul></ul><ul><li>Chemical Change </li></ul><ul><ul><li>produces a substance with new chemical properties </li></ul></ul><ul><ul><li>Indications of a Chemical Change: </li></ul></ul><ul><ul><li>1. Change in energy </li></ul></ul><ul><ul><li>Endothermic – energy is absorbed (feels cold) </li></ul></ul><ul><ul><li> Exothermic – energy is released (feels hot) </li></ul></ul><ul><ul><li>2. Production of gas </li></ul></ul><ul><ul><li>3. Change in color </li></ul></ul><ul><ul><li>4. Formation of a precipitate (solid) </li></ul></ul>
  10. 10. Follow-up questions <ul><li>When separating iron from the mixture, what physical property did you make use of? </li></ul><ul><li>When separating salt from the mixture, what physical property did you make use of? </li></ul><ul><li>When did you observe a heterogeneous mixture? </li></ul><ul><li>When did you observe a homogeneous mixture? </li></ul><ul><li>Complete question #76 (pg60) in your book </li></ul>

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