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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.
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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.
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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
Matter.notebook September 17, 2016
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MixturesCombination of two or more pure substances.Each pure substance retains its individual properties.
Heterogeneous MixtureIndividual substances remain distinct.Mixture does not blend smoothly.
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Homogeneous mixture
Appears to be in a single phase
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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
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
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Recognizing Chemical Change
Formation of a new substanceA gas is evolvedColor change
OdorEnergy is absorbed or given out
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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