You Will Need:1.Pencil, Colored pencils2.Elements, Compounds and

Mixtures – 2 sheet 4 sides – Bookshelf – This is Part 2

3.Timer/Designer – Log in.

Binder Checks are Cumulative1. Follow the Table of Contents2. Assignment Log #2 papers on top of

Assignment Log #1 papers3. Grade Print out (after 3/19) +

Signature – 25 points4. Cover Page & Table of Contents –

done on the computer5. Worth 130 points6. Due at the beginning of class next

Thur 3/20

Tests are Cumulative1. Target Concepts include older

material and newer material2. Create ½ page of notes based on

what you don’t know on Target concepts

3. ½ page of regular sized paper, front side only, done by hand.

4. Worth 20 points

Use Stand Alone1. Rest of the group use assigned

computer1. TASKS

1. Complete notes on page 1 & 22. Create a cover page for Binder

Check #23. Print out Table of Contents for

Binder Check #2

1. Elements are pure substances made of only one kind of atom.

2. As we have learned, atoms are tiny structures found in all matter.

3. Most substances contain many different atoms.

4. It is how those atoms are arranged that determine whether you have an element, compound or mixture.

1. One kind of atom2. Pure (because all particles are the

same)

3. Smallest particle to retain element’s identity

4. Separated only in nuclear reactions

Particles look like:

Every atom looks exactly the same

w/ the same number of protons

Oxygen

Hydrogen

11

1

88

8

Example:

Your Example?

Aluminum: Every atom of aluminum

in this can is exactly the same

1. Two or more kinds of atoms chemically bonded

2. Pure (because all particles are the same)

3. Smallest particle to retain the Compound’s identity (SET RATIO of particles)

4. Separated or rearranged in chemical reactions CO

2

Particles look like:

Every compound looks exactly the

same w/ the same set ratio

Carbon Dioxide – CO2

Sodium Chloride - NaCl

Example:

Your Example?

Salt: Every molecule of the

compound NaCl is exactly the same

1. Two or more elements and/or compounds blended together physically

2. Not pure (because all the particles are not the same)

3. Separation through distillation, magnetic, evaporation, density, or particle size

4. No set ratio

Particles look like:

Each particle keeps its own identity….they are just “blended” together

Mixture #1

Mixture #2

Examples:

Your Examples?

Heterogeneous: Different components are easy to see in this

type of blending

Homogeneous: Different components are difficult to see because they are

evenly distributed

Compound

Mixture

1. A solution is a mixture where all the components blend together to look like one substance.

2. A solution is a homogeneous mixture that appears to be a single substance.

3. The solution is composed of particles of two or more substances that are distributed evenly among each other and have the same appearance and properties throughout.

1. In solutions, the SOLUTE is the substance that is being dissolved and usually is the smaller quantity in the mixture.

2. The SOLVENT is the substance in the solution doing the dissolving and is usually the larger quantity in the mixture.

3. It is the SOLVENT that is doing the dissolving.

4. Go to page 144-145 in your textbook: Give examples of solutions in various states.

• Homogeneous: 2 or more things evenly blended and disappear into each other.

• Solute – Smaller quantity by %• Solvent – Larger quantity by %• Solution – a homogeneous

mixture

• Heterogeneous: 2 or more things put together and still can be seen.

• No set RATIO.

Have you ever put sugar into lemonade and seen the grains of sugar sink to the bottom and not dissolve?

This is because the lemonade (solution) is supersaturated. In other words, there is not enough water (solvent) to completely dissolve the sugar (solute).

Temperature and Pressure can affect saturation levels.

Saturation Level What does this mean?

What does this look like? (color)

Unsaturated

Saturated

Supersaturated

•Mixture contains more solvent than solute

•Able to dissolve more solute

•Mixture contains the % of solute completely dissolved by solvent

•No able to dissolve more solute

•Mixture contains the % of solute unable to be dissolved by the % of solvent at the given temp.

High temp usually = higher solubility

1. We now know the definition of Element, Compounds & Mixtures

2. What do their particles look like?

1. Elements, Compounds & Mixtures - To be “on-time” Pg. 1,2,3