1. Ammonium chloride NH4Cl

2. Aluminum oxide Al2O3

3. Ferric oxide Fe2O3

4. Potassium carbonate 3K2(CO)3

Do Now – count the atoms for each element in the compound.

N = 1 H = 4 Cl = 1

Al = 2 O = 3

Fe = 2 O = 3

K = 6 C = 9 O = 9

Homework Achieve 3000 – Choose one of the following

“Earth From Above” or “Another Earth”

AnnouncementsChapter 16 Test on Thursday

DuePages 360 (1-8) and 368 (1-8)

HomeworkFinish Carbon Compound Model Packet (summative grade)Review Packet due on Friday (Practice test)

3

Molecules in Living Organisms

L.O. SWBAT describe the

“BIG 4” organic compounds.

Molecules in Living Organisms• exist everywhere• can be small or large• Common Elements

(remember the mod squad)

S, C, H, N, O, P

Organic Compounds

• relating to, or derived from living matter

• compounds containing carbon.

Remember valence e-

• C atoms share 4 e- to achieve an octet (8).

• C can bond in many ways

Carbon Chain

1.

2..

(Challenge)

Carbon Chemistry Short Hand

Write the chemical formula

1. C4H10

2. C3H7OHOH

Review Carbon Structures

Single Bond

Double Bond

Triple Bond

Carbon ChainsIsomer: Two or more compounds with the same formula but different bonds and different properties.

Carbon ChainsSmall molecules are called monomers and when joined together they form polymers.

Small Molecules Support the function of larger molecules.

Examples

Water (H2O)

Salt (NaCl)VitaminsMinerals

• Macromolecules – giant molecules made from smaller molecules.

The Big 4! Glue in! Carbohydrates

Made up of C, H, O• Sugar and Starch• Provide Energy

Example: Glucose– C6H12O6

LipidsMade up of C, H, O

• Saturated• Unsaturated• Fats, oils, waxes,

cholesterol

ProteinsMade up of C, O, H, N, S

• composed of amino acids• Hemoglobin in our blood.

DNA• Made up of C, O, H, N, P• Chain of billions of small

molecules

Double helix structureA-T (Adenine-Thymine)G-C (Guanine – Cytosine)

Thumbs upThumbs down

Are the following molecules large or small?

• DNA– Large

• Water– Small (H20)

• Carbohydrates– Large

• Salt– Small (NaCl)

Pair Share

• MoCl2

– No ….. Mo and Cl are not essential elements to life.• C3H7NO2S– Yes …. C H O N S are all essential elements to life.

• CsI– No Cs and I are not essential elements

to life.

Are the following molecules most likely to be found in living organisms? Why?

Example: C27H46O Yes, C H O are all essential elements to life.

Summary1. Today I learned about…

2. What are the Big 4 organic compounds?

3. Why are carbon compounds so important to understand?

4. What are some of the different molecules that are found in living organisms?

5. What elements are repeatedly found in the molecules?

Carbon Compound Chains

Building Models

Work with your table groups to complete the packet. (Part of your summative grade)

Due next class along with your practice test.