What’s the MATTER Classify Matter
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Transcript of What’s the MATTER Classify Matter
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What’s the MATTER Classify Matter
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Matter, Classify Matter
At the conclusion of our time together, you should be able to:
1. Classify a mixture of matter based on their physical and chemical properties
2. Characterize various types of matter
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Bill Gates' RulesHere 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.
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Types of Matter
Pure Substance- Matter with a fixed composition It has distinct properties Examples = elements
compounds
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Types of Matter
Mixtures- Most matter is a mixture The composition is not fixed (changes
from sample to sample) Two Types –
HomogeneousHeterogeneous
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Homogeneous Mixtures Composition is uniform throughout
Solution- Particle size = 0.01 – 1 nm Doesn’t settle out upon standing Can’t be separated by filtering Doesn’t scatter light Example = salt water
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Colloid- Particle size = 1 – 1000 nm Doesn’t settle out upon standing Can’t be separated by filtering Scatters light (Tyndall Effect) Examples = milk, gelatin, smoke
Homogeneous Mixtures
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Heterogeneous Mixtures - Suspension The sample varies in composition,
properties and appearance No uniformity
If a suspension: Particle size is greater than 1000 nm Particles settle out upon standing Can be separated by filtration Might scatter light Examples = soil, trail mix, pond water
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Don’t Let This Stuff Bite You!!!!
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Let’s Look at Some Examples: Mixtures are variable combinations of 2 or
more pure substances.
Heterogeneous –visibly separate phases
Homogeneous – Same throughout
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Pure substance vs. MixtureOnly ONE element has 2 or more or compound. elements/ (distilled water) compounds.
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Distilled Water is a compound. an element. a solution. a mixture.
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Things my Mother taught me…
LOGIC.
"Because I said so, that's why."
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Air is a mixture of several gases.
Name Formula amountNitrogen N2 78 % Oxygen O2 21 % Argon Ar 1 % Carbon CO2 0.03 %
Dioxide
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Air is a mixture of several gases
Name Formula AmountNeon Ne 0.002 % Methane CH4 0.0002 % Helium He 0.000524 % Krypton Kr 0.000114 % Hydrogen H2 0.00005 % Xenon Xe 0.0000087 %
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Atoms are NOT the same as molecules. Air and oxygen are NOT the same. Helium and hot air are NOT the same.
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Helium and hot air are NOT the same.
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Another Hittite Innovation
A Better Porta-Pot
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What’s the MATTER Classify Matter
Let’s Put it All Together in a Chart!!
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Is the composition uniform?
NoYes
MATTERCan it be physically
separated?
Homo-geneous Mixture
(solution)
Hetero-geneous Mixture Compound
MIXTURE PURE SUBSTANCE
Yes No
Can it be chemically decomposed?
NoYes
Suspensions
Element
Colloids
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Solution Solvent Solute H2O NaCl
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SolVent SolUteThe chemical The chemicalin a solution in a solutionthat makes up that makes up the greatest part. the least part.
O
ER
NDER
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Interesting Answers to Catholic Elementary School Bible Questions:
The seventh commandment is: “Thou shalt not admit adultery.”
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Concentrationthe amount of solute
dissolved in a solvent.
SolventSolute
Low------------------- Highdilute dy loot concentrated
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Solubility -how likely it is for a solute to dissolve in a solvent.
insoluble solubleLow High
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Solvent
Solute
Crystal LegendCationAnionSaltWater
The Solution Process
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Several Types of Solutions
Salt in water 3M HCl Seltzer water Alloys Air Humid air
Solid/liquid Liquid/liquid Gas/liquid Solid/solid Gas/gas Liquid/gas
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I don’t feel so stupid now…
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Matter, Classify Matter
Let’s see if you can:
1. Classify a mixture of matter based on their physical and chemical properties
2. Characterize various types of matter
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Putting sand and salt together makes
a compound. an element. a mixture. a solution.
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Pure Water is a compound. an element. a solution. a mixture.
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Tap Water is a compound. an element. a solution. a mixture.
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Familiar Saying
A beholden vessel never exceeds 212 degrees Fahrenheit.
A watched pot never boils!
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An atom is to an element, as a molecule is to a
metal. nonmetal. metalloid. compound.
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If different kinds of atoms are represented by different colored dots, which picture represents a
sample of a compound?
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If different kinds of atoms are represented by different
colored dots, which picture below represents a mixture?
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Which of the following illustrations represents a pure substance?
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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
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Salt (NaCl) is a common substance. Salt is which of these?
atom element
compound mixture
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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.
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Which formulas represent compounds?
O2, H2O2 CO2, H2O
H2, CO2
H2, O2
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Which of the following is a compound? • oxygen • water • nitrogen • air
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I don’t feel so stupid now…