elements, compounds & mixtures-- spring 2012

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You Will Need: 1.Pencil, Colored pencils 2.Power of the Periodic Table Movie Notes – Due today 3.Assignment Log #3 Update w/new assignment 4.STAR Cards 31-60 Put in the Box on the front table please 5.Elements, Compounds and Mixtures 1sheets 2 sides – Part 1 - Bookshelf 6. Manilla Folder – Bookshelf

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Page 1: Elements, Compounds & Mixtures-- Spring 2012

You Will Need:1. Pencil, Colored pencils2. Power of the Periodic Table Movie

Notes – Due today3. Assignment Log #3 – Update w/new

assignment4. STAR Cards 31-60 Put in the Box on

the front table please5. Elements, Compounds and Mixtures –

1sheets 2 sides – Part 1 - Bookshelf6. Manilla Folder – Bookshelf

Page 2: Elements, Compounds & Mixtures-- Spring 2012

• 10 minutes

• Return manilla folder

• Turn in Quiz to Turn-in Tray

Page 3: Elements, Compounds & Mixtures-- Spring 2012

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.

Page 4: Elements, Compounds & Mixtures-- Spring 2012

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

Page 5: Elements, Compounds & Mixtures-- Spring 2012

Particles look like:

Every atom looks exactly

the same w/ the same number of

protons

Oxygen

Hydrogen

11

1

88

8

Page 6: Elements, Compounds & Mixtures-- Spring 2012

Example:

Your Example?

Aluminum: Every atom of

aluminum in this can is exactly

the same

Page 7: Elements, Compounds & Mixtures-- Spring 2012

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

Page 8: Elements, Compounds & Mixtures-- Spring 2012

Particles look like:

Every compound looks

exactly the same w/ the

same set ratio

Carbon Dioxide – CO2

Sodium Chloride - NaCl

Page 9: Elements, Compounds & Mixtures-- Spring 2012

Example:

Your Example?

Salt: Every molecule of the compound NaCl is exactly the

same

Page 10: Elements, Compounds & Mixtures-- Spring 2012

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

Page 11: Elements, Compounds & Mixtures-- Spring 2012

Particles look like:

Each particle keeps its own

identity….they are just “blended”

together

Mixture #1

Mixture #2

Page 12: Elements, Compounds & Mixtures-- Spring 2012

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

Page 13: Elements, Compounds & Mixtures-- Spring 2012
Page 14: Elements, Compounds & Mixtures-- Spring 2012

Compound

Page 15: Elements, Compounds & Mixtures-- Spring 2012
Page 16: Elements, Compounds & Mixtures-- Spring 2012

Mixture

Page 17: Elements, Compounds & Mixtures-- Spring 2012

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.

Page 18: Elements, Compounds & Mixtures-- Spring 2012

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: Give examples of solutions in various states.

Page 19: Elements, Compounds & Mixtures-- Spring 2012

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

• Solute – Smaller quantity

• Solvent – Larger quantity

• Solution – a homogeneous mixture

Page 20: Elements, Compounds & Mixtures-- Spring 2012

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

• No set RATIO.

Page 21: Elements, Compounds & Mixtures-- Spring 2012

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

2. What do their particles look like?

Page 22: Elements, Compounds & Mixtures-- Spring 2012

1. Elements, Compounds & Mixtures – Sides 1 & 2 complete by Monday, April 9th

2. STAR Cards 61-100 – Due Friday, April 13th

3. ENJOY your Spring Break!