2 Matter, Classify Matter At the conclusion of our time together, you should be able to: Classify a mixture of matter based on their physical and chemical propertiesCharacterize various types of matter
3 Bill Gates' Rules Here is a list of 11 things that many high school and college graduates did not learn in school. In his book, Bill Gates talks about how feel-good, politically-correct teachings created a full generation of kids with no concept of reality and how this concept has set them up for failure in the real world.RULE 9Life is not divided into semesters. You don't get summers off and very few employers are interested in helping you find yourself. Do that on your own time.3
4 Types of Matter Pure Substance- Matter with a fixed composition It has distinct propertiesExamples = elementscompounds
5 Types of Matter Mixtures- Most matter is a mixture The composition is not fixed (changes from sample to sample)Two Types –HomogeneousHeterogeneous
6 Homogeneous Mixtures Composition is uniform throughout Solution- Particle size = 0.01 – 1 nmDoesn’t settle out upon standingCan’t be separated by filteringDoesn’t scatter lightExample = salt water
7 Homogeneous Mixtures Colloid- Particle size = 1 – 1000 nm Doesn’t settle out upon standingCan’t be separated by filteringScatters light (Tyndall Effect)Examples = milk, gelatin, smoke
8 Heterogeneous Mixtures - Suspension The sample varies in composition, properties and appearanceNo uniformityIf a suspension:Particle size is greater than 1000 nmParticles settle out upon standingCan be separated by filtrationMight scatter lightExamples = soil, trail mix, pond water
17 What’s the MATTER Classify Matter Let’s Put it All Together in a Chart!!
18 MATTER No Yes Can it be physically separated? MIXTURE PURE SUBSTANCE Is the composition uniform?NoYesCan it be chemically decomposed?NoYesHomo- geneous Mixture(solution)Hetero- geneous MixtureCompoundElementSuspensionsColloids
20 Matter, Classify Matter Let’s see if you can: Classify a mixture of matter based on their physical and chemical propertiesCharacterize various types of matter
21 Putting sand and salt together makes a compound.an element.a mixture.a solution.
22 Pure Water isa compound.an element.a solution.a mixture.
23 Tap Water isa compound.an element.a solution.a mixture.
24 Familiar SayingA beholden vessel never exceeds degrees Fahrenheit.A watched pot never boils!
25 An atom is to an element, as a molecule is to a metal.nonmetal.metalloid.compound.
26 If different kinds of atoms are represented by different colored dots, which picture represents a sample of a compound?
27 If different kinds of atoms are represented by different colored dots, which picture below represents a mixture?
28 Which of the following illustrations represents a pure substance?
29 To: Santa Re: Where Are My Gifts?! Actual E-mails to EmailSanta.com I’m sorry, but I don’t have a chimney…I’ll leave the cat flap unlocked for you, but please watch out for the litter box!Jon, 4
30 Salt (NaCl) is a common substance. Salt is which of these? atomelementcompoundmixture
31 A chocolate chip cookie is an example of a __________, A chocolate chip cookie is an example of a __________, because ______________.a. compound, the ingredients are chemically bonded.b. compound, it is the same throughout.c. mixture, you can separate out the chips.d. mixture, you cannot distinguish between the ingredients.
32 Which formulas represent compounds? O2, H2O2CO2, H2OH2, CO2H2, O2
33 Which of the following is a compound? oxygenwaternitrogenair