September 17, 2016 - ahschools.us · PDF file September 17, 2016 Sep 29:07 PM Matter...
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Transcript of September 17, 2016 - ahschools.us · PDF file September 17, 2016 Sep 29:07 PM Matter...
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Matter.notebook September 17, 2016
Sep 29:07 PM
Matter Occupies spaceHas a mass
Chemistry Study of matter and the changes it undergoes
LT MATTER 1: Identify the different types of matter including elements, compounds, mixtures and pure substances.
Sep 118:10 PM
All matter is made up of tiny particles called __________ .
Pure substances
Element cannot be separated into simpler substances. Made up of only one type of atom.C, O2, Cu, S8Elements are listed in the periodic table.
Sep 1110:30 PM Sep 29:14 PM
CompoundMade up of more than one type of atom. The different atoms are chemically bonded.Sodium Chloride NaCl
Elements and compounds are pure substances.
Pure substances have uniform and unchanging composition
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Matter.notebook September 17, 2016
Sep 1110:37 PM Sep 1110:33 PM
Sep 118:28 PM
MixturesCombination of two or more pure substances.Each pure substance retains its individual properties.
Heterogeneous MixtureIndividual substances remain distinct.Mixture does not blend smoothly.
Sep 1110:21 PM
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Matter.notebook September 17, 2016
Sep 118:42 PM Sep 118:46 PM
Homogeneous mixture
Appears to be in a single phase
Sep 118:49 PM Sep 118:50 PM
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Matter.notebook September 17, 2016
Sep 118:51 PM Sep 129:57 PM
Sep 310:25 AM Sep 710:38 PM
Matter can undergo change.Physical Change (Composition does not change)
• One or more physical properties are altered • Size, shape, color and state of matter• Grinding, melting, dissolving and evaporating are physical changes.
No new substance or substances are formed as a result of physical change.
LT MATTER 3: Differentiate between physical and chemical changes
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Matter.notebook September 17, 2016
Sep 710:43 PM
Chemical ChangeChemical change (Composition of the substance changes)
• results in the formation of one or more new substances• these new substances differ in chemical properties and composition from the original substance• iron rusting and paper burning are 2 examples of chemical change
Sep 710:55 PM
Recognizing Chemical Change
Formation of a new substanceA gas is evolvedColor change
OdorEnergy is absorbed or given out
Dec 29:43 PM
Physical property can be observed without changing the composition of the substance
Ex: density, boiling point, melting point
Chemical property observed when the composition of the substance changes.
Ex: reaction with air, reaction with an acid