3 Matter: anything that has a mass and volume Matter: anything that has a mass and volume. It is classified by its chemical and physical propertiesIs air matter?
4 Mass – a measure of the amount of matter the object contains
5 1. Extensive Properties-depends on how much matter is present Describing Matter1. Extensive Properties-depends on how much matter is presentExamples:MassVolumeLength
6 2. Intensive Properties- depends on the type of matter in a sample Describing Matter2. Intensive Properties- depends on the type of matter in a sampleExamples:hardnessPhysical PropertiescolordensitytemperatureMelting and boiling points
7 Physical PropertiesRefer to the condition or quality of a substance that can be observed or measured without changing the substance’s composition.Examples: density, conductivity, melting point, boiling point, malleability, and ductility.
8 Chemical Property: the ability of a substance to undergo a specific chemical reaction and form a new substanceRust
10 Solids Solids are matter with definite shape and definite volume Particles are packed together in an orderly arrangementCan not be compressed
11 LiquidsLiquids are a form of matter that has an indefinite shape, flows, and has a definite volume.Particle arrangement is not rigid or orderlyAlmost incompressible
12 Gases Can be easily compressed Gases are forms of matter that take both the shape and volume of the container.Particles are in random positions and spaced outCan be easily compressedAre the terms gas and vapor interchangeable?
13 PlasmaA fourth state of matter is plasma. Plasma is formed when a gas is heated to a temperature at which its electrons dissociate from the nuclei
14 Classification of Matter Matter can be classified into one of two groups: pure substances or mixtures.MatterCan it be separated?yesNoMixturePure Substance
15 Classification of Matter Can it be separated?yesNoMixturePure SubstanceHomogeneousHeterogeneous
16 Mixture- a physical blend of two or more kinds of matter. MixturesMixture- a physical blend of two or more kinds of matter.Classifying Mixtures1. Heterogeneous2. Homogeneous
17 1. Heterogeneous Mixtures Different composition throughout; you can see the different substances that are mixed togetherSandTrail Mix
18 2. Homogeneous MixturesSame composition and properties throughoutA homogeneous mixture is more than one substance mixed together so well that it looks, feels and seems as though it is one substance and had dissolved together.~Another name for a homogeneous mixture is a solution.
19 A phase is any part of a sample with the same composition and properties. How many phases are in a homogeneous mixture?1How many phases are in a heterogeneous mixture?2 or more
20 Separating MixturesFiltration: separates a solid from the liquid
21 Separating MixturesDistillation: liquids are boiled to produce a vapor which, is then condensed into a liquid.
22 Separating MixturesDecanting: pouring one phase from a container and leaving the remaining phase.
23 Chromatography: passing a mixture dissolved in a "mobile phase" through a stationary phase
24 Classification of Matter Can it be separated?yesNoMixturePure SubstanceCompoundElement
25 Substances can be classified into two categories: 1. ElementsA pure substance made of only one kind of atom that has a unique set of properties.
26 2. CompoundsA substance that is made of atoms of two or more elements that are chemically bonded
27 MatterCan it be separated?yesNoMixturePure SubstanceUniform Composition?Does it break down?NoyesyesNoHomogeneousHeterogeneousCompoundElement