Brain Teaser

Read the short article on Blood Answer the following:

What are the advantages and disadvantages of artificial blood being made?

Is research going to be a factor in your life for the future?

What’s the Matter with Matter?

Thinking about Matter

Sort the following into two categories, matter and not matter.Peanut butter, water, fish, garbage,

time, motion, the human brain, carbon dioxide gas, yourself, an idea, tree, energy.

How did you distinguish between the categories?

What is Matter?

Matter is anything that has mass and volume

What forms does matter come in?

Solid Liquid Gas Plasma

States of Matter

Solid has definite shape and definite volume.

Solid animation - Ice

States of Matter

Liquid has undefined shape but defined volume

Liquid Animation - Water

States of Matter

Gas has undefined shape and undefined volume.

Gas Animation - Steam

States Of Matter

Plasma very hot gasses undefined shape and volume only exist at high temperatures (i.e. the sun)

Physical Properties

Characteristics of a substance that can be observed without altering the identity of the substance. State, density, color, odor, melting point, boiling

point, luster, conductivity, brittleness, malleability.

H2O_phases.exe

Chemical Properties

Characteristics of a substance that cannot be observed without altering the identity of the substance. Reactivity, flammability, reaction types

Closure

Draw pictures that represents a solid, a liquid, and a gas.

Explain each drawing.

Physical and Chemical Changes

Physical Changes Do not alter the identity of a substance

Crushing, tearing, changes of state (solid to liquid to gas)

Chemical Changes Alter the identity or chemistry of a substance

Burning, cooking, rusting

Physical and Chemical PropertiesPhysical and Chemical Properties Consider a copper coin. Make a list of its chemical

and physical properties. Consider these photos for clues.

Cu and Nitric acid.MOV

Practice

Physical vs. Chemical

KBr Lattice.MOVMg and HCl.MOV

Zn and S.MOV

Brain Teaser

List the properties that identify whether a matter goes through physical or chemical change.

Observe the Demo:

What is happening? Is this a chemical or physical change? Why?

Physical and Chemical Changes

Is this a physical or a chemical change?

Explain your reasoning.

Lab- Physical vs. Chemical Change

Station Rotation How do you know a chemical change has

occurred? What are the indicators?

Classification of Matter Laboratory

Station Rotation Write down the Chemical Formula Name of substance Describe the appearance of the substance.

Be very specific!!

Classification of Matter Laboratory

Developing the classification scheme Look for patterns

In formulas, names, appearance

Be able to use your classification scheme to describe all of the substances you looked at.

Remember to start broad and get more specific as you go through the chart.

Classification of Matter

Matter

Pure Substance Mixture

Element Compound Heterogeneous Homogeneous

Classification of Matter

Pure Substance Elements

Matter that can not be broken down into simpler substances under normal lab conditions

Contains only one kind of atomAtom Molecule

Elements (symbols) Na, Au, C Where can you find a list of all the elements?

Pure Substance Compounds Can be separated into elements

Composed of two or more elements that combine in a chemical reaction

Combine in a fixed proportion Examples – NaCl, H2O, Fe(NO3)3

+

+

Which are elements and which are compounds?

Mixtures

A blend of two or more pure substances Not chemically combined

Granite

MixturesHeterogeneous

Mixture with visibly different parts. Sand + water Salt + Pepper M & M’s

MixturesHomogeneous

Mixture with no visibly different parts. Sea water H2O + NaCl

Air N2 + O2 + CO2

Practice Classifying Matter

Make a list of 3 things (and their parts) found in the classroom. Classify these as solid, liquid, or gas pure substances and mixtures homogeneous or heterogeneous elements or compounds

Be prepared to share your classifications?

ClassifyClassify

mixtures pure substances elements compounds

Draw a picture that represents a pure compound.

ClassifyClassify

Classify each of the following as, a homogenous or heterogeneous mixture, pure substance, element or compound, atom or molecule.

1. CH4

2. KMnO4

3. Co

4. Al + H2O

Draw atomic level pictures of each substance.

Classification of Matter Lab Quiz

Closure

Draw an atomic level picture of a mixture of compounds.

Agenda August 10th, 2005

Warm-up Review Homework- Grade Quiz Chemistry Lab Book Format Lab - “Reaction of Solutions” Post Lab discussion Lab write-up Intro to atomic representations Homework: Atoms, Molecules, etc…

WARM-UP

Briefly describe each of the following separation techniques. Identify the only techniques that can separate a compound into its elements.

1) Filtration2) Crystallization (evaporation)3) Chromatography4) Electrolysis5) Distillation

GradeMATTER POST LAB QUIZ

Introduction to “Reaction of Ions in Solutions” Lab

PURPOSE Why am I doing this lab? Must connect to the title

“The purpose of this lab is to …”

Introduction to “Reaction of Ions in Solutions” Lab

BACKGROUND INFORMATION The “stuff” you need to know before

conducting the lab. Terms, Cautions, Chemicals, Concepts,

ect. Paragraph form

Introduction to “Reaction of Ions in Solutions” Lab

BACKGROUND INFORMATION D.W. Distilled Water Ions – Charged particles Precipitate- solid forms Pb(NO3)2 – Lead Nitrate KI – Potassium Iodide NaCl – Sodium Chloride Na2SO4 – Sodium Sulfate

Introduction to “Reaction of Ions in Solutions” Lab

MATERIALS AND APPARATUS List all the materials and equipment to be used

and draw the apparatus set up.

Petri Dish

Flask with D.W.

Pipettes

Pb(NO3) 2

KI

NaCl

Na2SO4

Introduction to “Reaction of Ions in Solutions” Lab

Procedure Add enough distilled water to cover the

bottom of the petri dish Add 20 drops of each solution Make observations

Introduction to “Reaction of Ions in Solutions” Lab

DATA All qualitative and quantitative data

collected.

Reaction of Ions in Solution

Pb(NO3)2 KI NaCl Na2SO4

Pb(NO3)2

Result Result Result

KI Result ResultNaCl ResultNa2SO4

Post Lab Discussion: “Reaction of Ions in Solutions” Lab

DATA ANALYSIS OR RESULTS Paragraph form Explain the data collected Analyze your results

Lead Nitrate is mixed with potassium Iodide and a yellow precipitate forms.

Final sentences discuss why you learned about the reactivity of certain substances

Post Lab Discussion: “Reaction of Ions in Solutions” Lab

CHEMICAL EQUATIONS

Pb(NO3)2 + KI PbI2 (s) + K + NO3

Pb(NO3)2 + Na2SO4 PbSO4 (s) + Na +NO3

Pb(NO3)2 + NaCl PbCl2 (s) + Na + NO3

Post Lab Discussion: “Reaction of Ions in Solutions” Lab

CONCLUSION

What does it all mean?!

Overall Summary of the LabWHY DID YOU GET THESE

RESULTS?

NEW TERMS Ion Petri Dish Medicine dropper/Pipette Beaker Flask (Erlemnmeyer) Diffusion Precipitate (ppt) Distilled Water Soluble Insoluble

CLOSUREMatch the following:

NO3

SO4

Pb(NO3)2

KI PbI2

NaCl Na2SO4

PbSO4

PbCl2

Potassium Iodide Lead Sulfate Sulfate Sodium Sulfate Lead Chloride Nitrate Lead Nitrate Sodium Chloride Lead Iodide

Warm-Up

Determine: # of atoms, # of molecules, Compound, elements, if it is a mixture or a pure compound and the formula for the following:

= A = B = C

Draw the atomic structure for three molecules of one element.

Lab Quiz

When Finished Pick up Atoms, Molecules, Elements, compounds

Rally Table

You and ONE (1) partner Alternate problems Use different color ink

Work Time

Finish Conclusion Work on 2-5 Review and Reinforcement Work on Study Guide

Atomic level Quiz

Design your own!

You must make a key for the symbols You must make some pure substances and

mixtures You must describe your drawing!

Warm-up

1. Draw an atomic level example of a chemical change.

2. Draw an atomic level example of a physical change.

3. Classify the following drawing.

4. Draw 8 particles consisting of 2 elements and 1 compound.

Honors ChemistryAgenda-August 17th 2005 Warm-up Review Study Guide Test – Matter After Test

Turn in H.W. Packet Read Book pg. 58-63 Complete W.S.

Measurements in Chemistry Significant Figures

Homework Complete W.S. Safety Poster Due 8/22