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Chemistry Chemistry Measures UpMeasures Up
with your name here
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What is Chemistry?
Chemistry is … the study of the composition and properties of matter.
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What is matter?
Matter is … anything that has mass and takes up space.
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Matter surrounds us in the form of solids, liquids, and gases.
All matter, regardless of its size, shape, or color, is made of particles that are too small to be seen by the unaided eye.
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AtomsAtoms
ATOM-the basic unit of matter. ATOM-the basic unit of matter.
An atom is made up of 3 parts…An atom is made up of 3 parts…
Protron (+ charge)Protron (+ charge) Neutron (no charge)Neutron (no charge) Electron (- charge)Electron (- charge)
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ElementsElements
ELEMENT-the specific name of an atom.
An element is distinguished by its atomic number (the number of protons it has).
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MoleculesMolecules MOLECULE- made up of two or more atoms MOLECULE- made up of two or more atoms
that are held together through that are held together through bondsbonds. .
Bonds are attractions between atoms that tightly hold the molecule together.
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A Simple MoleculeA Simple Molecule
Water (H20)
•2 hydrogen atoms•1 oxygen atom
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Another Simple MoleculeAnother Simple Molecule
Ethane (C2H6)
•2 carbon atoms•4 hydrogen atoms
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A Polymer… More ComplexA Polymer… More Complex
The polymer “polyethylene”consists of many ethane molecules.
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What is a Polymer?What is a Polymer?
Polymers are made of many molecules Polymers are made of many molecules strung together to form really long chains.strung together to form really long chains.
Polymers can occur in Polymers can occur in nature or they can be nature or they can be man-made.man-made.
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What is a polymer?What is a polymer?
These long polymer chains are formed by teeny tiny These long polymer chains are formed by teeny tiny molecules called molecules called monomersmonomers..
A single polymer molecule is made out of hundred of A single polymer molecule is made out of hundred of thousands (or even millions!) of monomers!thousands (or even millions!) of monomers!
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Today we will…Today we will…
Measure ingredients in a formula.Measure ingredients in a formula.
Create a polymer.Create a polymer.
Convert fractions to decimals and percents.Convert fractions to decimals and percents.
Have fun with math and science!Have fun with math and science!
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Ingredient:
StandardUnits:
MetricUnits:
Fraction:
Fraction Estimate:
Decimal Estimate:
PercentEstimate:
Solution A
Water Glue Solution B
Borax Water Total
Standard Metric2 tsp 9.86 = _____
ml(1/3)=.375 cup
88.72 = _____ ml
(1/2) =.5 cup 118.29 = _____ ml
(2/3)=.667 cup
157.57 = _____ ml
Chemistry Measures Up! Data Sheet
89 ml
118 ml
.375 cup
10 ml
158 ml
375 ml375 ml
89 / 37589 / 375
118 / 375118 / 375
10 / 37510 / 375
158 / 375
375 / 375
.5 cup
2 tsp
.667 cup
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EthaneEthane
First discovered in 1834.First discovered in 1834. A component of natural gas.A component of natural gas.
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ButaneButane
Liquid formLiquid form Found in LPG bottles used in gas grillsFound in LPG bottles used in gas grills
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ParaffinParaffin
Waxy solidWaxy solid Used in candles and has a low melting Used in candles and has a low melting
pointpoint
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PolyethylenePolyethylene
SolidSolid This is everyday plastic—milk This is everyday plastic—milk
jugs, detergent bottles, or any jugs, detergent bottles, or any plasticplastic
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Thank you !!!Thank you !!!