You Will Need:1. Pencil, Colored pencils

2. Bohr Model and Lewis Dot Diagrams + Cornell Notes Due now

3. Assignment Log #4 – Update w/new assignment

4. Elements, Compounds and Mixtures – 1 sheet 2 sides – Bookshelf – This is only Part 1

5. One sheet of paper set up for Cornell Notes

Test #3 Retakes1. Front Board and Learning Point

for specific times

Update Log #41. Test #3 Returned today2. Due back by Friday – Signed and

CorrectedRemember to explain WHY you

missed the multiple choice questions

3. Timer-Designers – Log in

In Charge of Leading Discussion1. Log into Learning Point2. Daily Assignments3. This Week4. Open “Power Notes: Elements,

Compounds and Mixtures” slide share

5. Use your abbreviation skills6. R & R – Pgs 1 & 2

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

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

2. Most substances contain many different atoms.

3. 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 identity of the element

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 identity of the compound (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

1. Based on your notes, LABEL the illustrations as Elements, Compounds or Mixtures

2. Then, Write the letters A, B, C, D or E from the pictures to match their description.

3. Classify the pictures as(CROSS OUT MOLECULE)

• ATOM• COMPOUND• ELEMENT

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 which the solute is dissolved and usually is 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: • A) Copy example in Book• B) Give your own example – Groups can have

the same example

Topic: Solutions (next 5 slides)

NameDatePeriod

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

Solute • Smaller quantity by %

Solvent • Larger quantity by %

Solution • Homogeneous mixture

Examples 1) Dish soap

2) (your example)

Heterogeneous • 2 or more things put together (blended) but still can be individually seen

• No set Ratio

Example 1) Salad, Pizza, Trail Mix, Hamburger, Taco

2) (your example)

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

•Not 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

Have you ever put sugar put into lemonade and see 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.

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

2. What do their particles look like?

End of Cornell Notes

1.Signed and Corrected Test – Due Friday

2.Complete Power Notes – Elements, Compounds and Mixtures – Pgs. 1 & 2