1 / 18

Describing Matter

Describing Matter. Properties of matter. Chemistry The study of the properties of matter and how matter changes. Properties of Matter. Substance A single kind of matter that is pure having a specific makeup or composition and a specific set of properties. Properties of Matter.

tomasd
Download Presentation

Describing Matter

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Describing Matter

  2. Properties of matter • Chemistry The study of the properties of matter and how matter changes

  3. Properties of Matter • Substance A single kind of matter that is pure having a specific makeup or composition and a specific set of properties

  4. Properties of Matter Every form of matter has two kinds of properties, physical properties and chemical properties

  5. Properties of Matter • Physical Property Characteristic of a pure substance that can be observed without changing it into another substance Examples Water, Ice, and steam Hardness Texture Color

  6. Properties of Matter • Chemical Property A characteristic of a pure substance that describes its ability to change into different substances Examples Flammability Rust Baking

  7. Elements • Element A pure substance that can not be broken down into any other substance by chemical or physical means.

  8. Elements Elements ARE the simplest substances.

  9. Elements • Atom A basic particle from which all elements are made • Atoms are different for each element

  10. Elements • Chemical Bond When atoms combine, this is the force of attraction between two or more atoms. Atoms combine to form larger particles called molecules

  11. Compounds • Compound A pure substance made of two or more elements chemically combined IN A SET RATIO Water H2O Hydrogen = 2 Oxygen = +1 Total = 3

  12. Chemical Formula Shows the elements in the compound and the ratio of the atoms Carbon dioxide CO2 Ratio 1 Carbon to 2 Oxygen If there is no number a 1 is understood Sugar C6H12O6 Carbon 6 Oxygen 6 Hydrogen 12 Compounds

  13. Compounds • When elements are chemically combined they form compounds having properties that are different from those of the uncombined elements

  14. Mixtures • Mixture Made of 2 or more substances– elements, compounds or both– that are together in the same place but are not chemically combined

  15. Mixtures Each substance in a mixture keeps its individual properties. Also , the parts of a mixture are not combined in a set ratio

  16. Mixture • Heterogeneous Mixture You can see the different parts Examples-- sand soup salad

  17. Mixture • Homogeneous Mixture Are so evenly mixed that you can not see the different parts Examples Salt water sugar water A SOLUTION

  18. Separating…Compounds vs Mixtures • Compounds are difficult to take apart • A Mixture is easy to separate Ways of separating mixtures • Magnetic attraction • Filtering • Distillation • Evaporation

More Related