1 / 27

Understanding Matter: Elements, Compounds, Mixtures

Delve into the fundamentals of matter, exploring the distinctions between elements, compounds, and mixtures. Learn about the properties and types of mixtures, as well as the characteristics of solutions and compounds. Discover the fascinating world of atoms, molecules, and chemical reactions. Enhance your knowledge of the diverse forms matter can take in the physical world.

andreamartinez
Download Presentation

Understanding Matter: Elements, Compounds, Mixtures

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. Chapters 3 Notes Matter 2.2 lbs = 1 kg 1 kg = 9.8 N

  2. I.Classes of Mattervideo #12 -Matter exists as elements, compounds, mixtures, or solutions *Homogeneous matter: identical properties throughout. Ex: salt h20

  3. *Heterogeneous matter: different properties Ex. Fruit salad, shovel of dirt

  4. II. Mixturesvideo #11 pp41 *two or more substances mixed together but not chemically combined.

  5. A. Properties of Mixtures -substances keep their separate ident and most of their own prop. -may chng in physical appearance. Ex. Sugar and water, mp, bp

  6. -subst can be present in any amnt. -subst can be separated out.

  7. B. Types of Mixtures 1.Heterogeneous mixture *particles are large enough to be seen and settle out. EX: concrete

  8. 2. Homogeneous mixture *particles very small and do not settle out. EX: Stainless steel

  9. *Colloids: Larger particles but left in suspension Ex: smoke,

  10.  C. Solutions *one substance dissolves in another. Ex. Ocean water, tea, air.

  11. -3 Important Prop of Solutions 1.part not large enough to be seen 2.part. are evenly spread out(all parts of sol are ident) 3.solution doesn’t settle out of time

  12. Video #9 *Alloy: solids dissolved in solids ex: brass, sterling silver DEMO

  13. III. Elements videos #10 *Pure Subst: made of only one kind of material and has definite prop *Element: simplest pure subst. ; cannot be chngd into simpler subst by heating or any chem process -Ex

  14. A.   Elements and Atoms pp39 *Atom: smallest particle of an element with the prop. of that element.

  15.  B. Chem Symbols *represent elements

  16. IV. Compounds pp40 *two or more elements chem. combined. Ex: sugar, baking soda, TNT

  17. A compound is two or more elements combined together. • This is a picture of a salt compound.

  18.  -Can be broken down into simp subst. >by heating, electricity

  19. -The prop of a cmpnd are very diff from the prop of the elements in it.

  20. *Molecules: 2 or more atoms chem. bonded together. -smallest particle of a cmpnd that has all the prop of that cmpnd.

  21. A molecule is the smallest particle of a substance that exists alone. • This is a picture of a water molecule. It is two parts hydrogen and one part oxygen.

  22. *Chemical Formulas: 1. What it is 2. How much

  23.  *Chemical equation: description of a chem. rxn using symbols and formulas.

  24. Chemical equation: • What you put in • What you get out • How much

  25. *Law of conservation of mass: *Law of conservation of nrg: *nrg: ability to do work pp77

  26. *Diatomic Molecules: (super 7) Br, I, N, Cl, H, O, F

  27. *Chemical Rxn: 1. Bubbles 2. Formation of a precipitate 3. Heat and light given off pp184

More Related