Do Now – 1st period

Can you name the following?

(Hint: Use prefixes on the second element)

1)CO

2)CO2

3)CCl4

Carbon monoxide

Carbon dioxide

Carbon tetrachloride

Homework Achieve 3000 – Choose one of the following

Earth From AboveAnother Earth

"An hour for Earth" was a mistake! No activity, just an interesting read...

AnnouncementsChapter 16 Test Next week

Independent WorkPacket 16.2 In your notebook:

Review Pages 360 (1-8) and 368 (1-8)

Do Now

1. What is an ion?

2. What is a polyatomic ion?

3. What is the net charge of a compound?

Homework Achieve 3000 – Choose one of the following

“Earth From Above” or “Another Earth”

AnnouncementsChapter 16 Test Either Fri/Mon

Due TodayPacket 16.2 (late)In your notebook: Pages 360 (1-8) and 368 (1-8)

Do Now

Cation Anion CompoundCompound

Name

Al3+ O2-

Mg2+ O2-

K+ Cl-

Cs+ Br-

Al2O3

KCl

CsBr Censium bromide

Dialuminum trioxide

MgO Magnesium

oxidePotassium

chloride

Do Now

Can you name the following?

(Hint: Use prefixes on the second element)

1)CO

2)CO2

3)CCl4

Carbon monoxide

Carbon dioxide

Carbon tetrachloride

Homework Achieve 3000 – Choose one of the following

“Earth From Above” or “Another Earth”"An hour for Earth" was a mistake! No activity, just an

interesting read...

AnnouncementsChapter 16 Test Next week

Independent WorkPacket 16.2 Due Today

HomeworkIn your notebook: Pages 360 (1-8) and 368 (1-8)

Carbon Compounds

L.O.: To determine the chemical formula of carbon compounds.

COUNTING ATOMS

L.O.

SWBAT identify the number of atoms for each element in a compound.

RULES FOR COUNTING ATOMS

1. SUBSCRIPTS only refer to the atom that they are to the right of. For example…

H2SThere are TWO atoms of HYDROGEN and only ONE atom of SULFUR.

LETLET’’S PRACTICE!S PRACTICE!

MgCl2

Atoms of Magnesium:

Atoms of Chlorine:

1

2

Al2S3

Atoms of Aluminum:

Atoms of Sulfur:

23

COEFFICIENTS2. COEFFICIENTS apply to the entire

compound. You MULTIPLY the coefficients and SUBSCRIPTS.

2 H2S

ATOMS OF HYDROGEN:

ATOMS OF SULFUR:

2 x 2 = 4

2 x 1 = 2

IF THERE ISN’T A SUBSCRIPT BEHIND AN ELEMENT, THERE IS ONLY ONE ATOM OF THAT ELEMENT!

PRACTICEPRACTICE

2H2SO4

Atoms of Hydrogen:Atoms of Sulfur:Atoms of Oxygen:

42

3CH3OH

Atoms of Carbon:

Atoms of Hydrogen:

Atoms of Oxygen:

39 + 3 = 12

8

3

PARENTHESES

3. If elements or ions are inside of PARENTHESES, then the SUBSCRIPT to the right of the parentheses applies to everything inside.

Ba(OH)2

ATOMS OF BARIUM:

ATOMS OF OXYGEN:

ATOMS OF HYDROGEN:

1

2

2

THIS COULD BE A LITTLE THIS COULD BE A LITTLE TRICKY…TRICKY…

Ca3(PO4)2 Atoms of Calcium:Atoms of Phosphorus:Atoms of Oxygen:

32

Al2(SO4)3

Atoms of Aluminum:

Atoms of Sulfur:

Atoms of Oxygen:

23

8

12

What about this BAD BOY???What about this BAD BOY???

2Ca3(PO4)2 Atoms of Calcium:Atoms of Phosphorus:Atoms of Oxygen:

64

16

Flash Review: Tell your neighbor!

How many bonds can each of the following elements make?

O H COxygen can make 2 bondsbecause it has 2 free valence electrons.

H = 1 bond

C = 4 bonds

18

Valence Electron Review

O, H, C

CO H

Carbon

can make 4 bonds with other elements in a compound.

an essential element to all living things.

Carbon Bonds

Carbon bonds: Single bonds

Double bonds

Triple Bonds too!

C C

C C

C C

Carbon Structures

3 types of structures: Straight chains

Carbon Structures Straight Chains

Branched Chains

Carbon Structures

Straight Chains Branched Chains Rings

Skill Development

1. Draw in carbon atoms.

2. Draw in hydrogen atoms.

3. Count the atoms of each element.

4. Write the chemical formula.

C = 6 H = 14

C6H14

Guided Practice: What is the chemical formula of the compound? Copy the

Compound1. Draw in carbon

atoms.2. Draw in hydrogen

atoms.3. Count the atoms

of each element.4. Write the

chemical formula.

C = H =

Pair Share – Be ready to answer.

Name three types of bonds carbon can use to bond to itself or other elements in a compound.

Single bondDouble bondTriple bond

Pair Share

Why are carbon compounds so important to understand?

Because carbon is an essential element to all living things.

Pair Share

What is the chemical formula of the compound?

C9H18

PracticePractice1. Write the chemical formula for each

carbon compound.

2. Draw the carbon compound for the chemical formula below.

C4H10

Summary (2-3 sentences)

Why is carbon the most essential element for life?