Housekeeping

• Pick up:Unit 2 Study Guide

• Hand in:Signed course outline stripHI #2

• Need to make up for a lab?Sign up sheet available at the back

Portfolio

• Write name and block on the portfolio• Collect:

Return HI#1Density Lab

• Take portfolio home and go over questions at home

• On the day of quiz, bring portfolio back to school

Unit 2 Overview

• 2 quizzes Unit conversion, SF and scientific notationSeparation method

• 1 lab• 1 unit test (Around thanksgiving time)• 1 study guide

Chemistry 11

Properties of MatterGooey Stuff!

Terminology

• Physical changeChange that do not change

what the substance is

• Chemical changeChange that results formation

of new substance

Terminology

•Qualitative observationNon-numerical information

•Quantitative observationNumerical information

Terminology

• Physical propertyA property that can be found

without creating a new substance.

• Chemical propertyThe ability of a substance to

undergo chemical reactions.

Terminology• Intensive property

A physical property that depends on the nature of the substance.

(e.g., melting temperature, electrical conductivity and density)

• Extensive propertyA physical property that depends on the

amount of the substance. Size matters!(e.g., mass, volume, length and shape)

Properties of the ‘???’• Form a group of four.• Choose:

LeaderRecorderPresenterTime keeper

• Pull out a piece of paper and write down names and their roles.

Properties of the ‘Slime’• Leader = Ensure no one is goofing

around.• Recorder = Write down the

observations.• Presenter = Share result with class.• Time keeper = Ensure task is done

on time.

Properties of the ‘???’• As a group come up with 15 observations. (e.g.,

the color is …, the mass is …,)• Classify each observation as examples of terms

(e.g., “the mass is …” is quantitative observation.)• Restriction:

Balance, pH paper and thermometer are available for you to use at the back bench only

Everyone has a designated job.Time limit = 15 minutes.Do not touch if you have sensitive skinWash after touching

Gather Results!

• Give the slime back to Ms. Yajima• Wash the beaker and return to the back

bench• Hand in the paper at the end of class.

Properties of the ‘Slime’

•What are examples of the terms discussed?Qualitative information (Ql)Quantitative information (Qt)Physical property (PP)Chemical property (CP)

Properties of the ‘Slime’

•What are examples of:Intensive property (IP)Extensive property (EP)

Properties of the ‘Slime’

• Is the slime:Element? Compound?Metal? Non-Metal?Homogenous or

Heterogeneous mixture?

Terminology• Matter

Anything that occupies space and has mass

• ElementA substance that cannot be separated into

simpler substance (e.g., copper metal)

• AtomThe smallest possible unit of an element.

(e.g., Silver metal is made of many silver atoms)

Terminology• Compound

A pure substance made of one kind of molecule

• MoleculeA substance made of two or more atoms (e.g., O2, H2O,

C12H22O11)

• IonAn atom or molecule that has an electrical charge. (e.g.,

Na+ is a sodium ion)

• ParticleA term used to describe a small bit of matter like an

atom, molecule or ion

Terminology• Homogeneous mixture

A mixture made of only one phase (e.g., air, miscible solution)

• Heterogeneous substanceA mixture made of two or more phases. (i.e,

you can see the different parts in the mixture like oil and water (immiscible solution))

• SolutionA homogeneous substances made of two or

more substances.

State of the ‘Slime’

• Is the slime:Solid, liquid or gas?

States of Matter

• There are three main states of matter. Gas, Liquid, Solid

•What makes one state different from other??

Kinetic Molecular Theory

Phase vs State

• In chemistry, words “phase” and “state” are used interchangeably. • BUT they are slightly

different.

Phase vs State

• Phase = A region (part) that has uniform chemical and physical properties.• State = A form of matter

such as solid, liquid or gas.

Phase vs State

• E.g., Consider mixing water and oil.There are two phases.Both substances are in liquid state so

there is only one state.Since there are two phases, mixture is

heterogeneous.

Phase vs State• E.g., Consider mixing water and soy sauce.

There is only one phase.There is only one state.Since there is one phase, mixture is

homogeneous.

Classification of Matter• Cut out the terms and arrange them in a

chart or flow diagram that makes sense to you.

• Take picture and send it to mail2msyajima@gmail.com

• OR arrange the terms on a piece of paper, glue or tape them, then bring it to class.

Finding out about Matter

• Complete section A and B • For C, using two data set, plot two graphs

• Quiz next next class (Oct 2(Fri) or 3(Mon)):Unit conversionSFScientific notationMeasurement

Chemistry 11

Classification of Matter(Extra Materials)

Example of evidence of:• Chemical change….

State changed from liquid to “solid” (precipitate forms)

Something burning or explosionColor appearsBubbles formAsh forms TemperatureΔ SmellΔ Taste (although you are not supposed to taste)ΔPoisonous chemical appears

Example of:• Physical change

FreezingBoilingCondensingMeltingSublimationDepositionGrinding

Terminology• Metal

A substance with properties such as:• Solid• Good electrical and thermal conductivity• Malleable (can be hammered into a sheet like aluminum

foil)• Ductile (can be stretched into a wire form like a copper

wire)• Shiny

• Non MetalA substance that does not show metallic characteristic.Located on the right hand side of the periodic table.

Terminology

Metals

Non-metals

States of Matter

State Shape VolumeWhen

heated or pressurized

Kinetic Energy

Solid Rigid SmallMinimal Volume Change

Small

Liquid Fluid SmallSmall

Volume Change

Large

Gas Fluid LargeLarge

Volume Change

Very Large

Study Sheet for the New Unit

• This is a short unit, so let’s start working on the study sheet!

• Summarize important points for the sections according to the guideline

• Drawing recommended• Use color to organize

Study Sheet Example