Chemistry Matter and its Properties Chapter 1 part II.
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Transcript of Chemistry Matter and its Properties Chapter 1 part II.
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ChemistryChemistryMatter and its PropertiesMatter and its Properties
Chapter 1 part IIChapter 1 part II
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VolumeVolume
Volume is the amount of three dimensional space an object occupies.
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MatterMatter
Matter has mass Matter has mass and takes up and takes up space.space.
On the left is grey On the left is grey mattermatter
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MassMass
Mass is the amount Mass is the amount of matter an object of matter an object containscontains
Not this kind of Not this kind of massmass
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Mass continuedMass continued
On Earth On Earth mass=weightmass=weight
This kind of mass!!This kind of mass!!
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SubstanceSubstance
Matter that is Matter that is uniform and has a uniform and has a definite definite composition is composition is called a substance. called a substance.
Salt, Sodium Salt, Sodium Chloride, is a Chloride, is a substancesubstance
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Not a SubstanceNot a Substance
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Basic Building Blocks of Matter
An atom is the smallest unit of an element that maintains the chemical identity of that element.
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Basic Building Blocks of Matter
An element is a pure substance that cannot be broken down into simpler, stable substances and is made of one type of atom.
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Basic Building Blocks of Matter
A compound is a substance that can be broken down into simple stable substances. Each compound is made from the atoms of two or more elements that are chemically bonded.
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Properties and changes in MatterProperties and changes in Matter
Extensive properties depend on the amount of matter that is present.
volume mass the amount of energy in a
substance.
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Properties and Changes in Matter
Intensive properties do not depend on the amount of matter present.
melting point boiling point density ability to conduct electricity ability to transfer energy as heat
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Physical PropertiesPhysical Properties
A physical property A physical property is a quality or is a quality or condition of a condition of a substance that can substance that can be observed or be observed or measured without measured without changing the changing the substances substances composition.composition.
CCoolloorr SolubilitySolubility OdorOdor HardnessHardness DensityDensity Melting pointMelting point Boiling pointBoiling point Freezing pointFreezing point
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States of MatterStates of Matter
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SolidSolid
Solids have definite Solids have definite shape and definite shape and definite volumevolume
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LiquidLiquid
Liquids are a Liquids are a definite volume but definite volume but indefinite shape.indefinite shape.
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LiquidsLiquids
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GasGas
Gas has indefinite Gas has indefinite volume and volume and indefinite shapeindefinite shape
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PlasmaPlasma
Plasma is a high-temperature physical state of matter in which atoms lose most of their electrons, particles that make up atoms.
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Physical changesPhysical changes
Changes that alter Changes that alter matter without matter without altering the altering the chemical chemical composition are composition are physical changesphysical changes
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Physical changesPhysical changes
BoilBoil FreezeFreeze GrindGrind CutCut CrushCrush MeltMelt BreakBreak
CrackCrack BendBend DissolveDissolve CondenseCondense
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Chemical Change versus Physical Chemical Change versus Physical ChangeChange
A chemical property relates to a substance’s ability to undergo changes that transform it into different substances
A change in which one or more substances are converted into different substances is called a chemical change or chemical reaction.
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Chemical Properties and Chemical Chemical Properties and Chemical ChangesChanges
• The reactants are the substances that react in a chemical change.
• The products are the substances that are formed by the chemical change.
reactants products Carbon plus oxygen yields (or forms)
carbon dioxide. carbon + oxygen Carbon
dioxide
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Properties of Reactants & ProductsProperties of Reactants & Products
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Chemical and Physical ChangesChemical and Physical Changes
A A Physical Physical ChangeChange is a is a change in state change in state only. The original only. The original component or component or components components remains.remains.
A A Chemical Chemical ChangeChange is a is a reaction. A new reaction. A new component or component or components are components are formed.formed.
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Chemical or Physical Change?Chemical or Physical Change?