Do Now

1
Do Now 1st period

• Can you name the following?
• (Hint Use prefixes on the second element)
• CO
• CO2
• CCl4

Carbon monoxide
Carbon dioxide
Carbon tetrachloride
2

• Homework
• Achieve 3000 Choose one of the following
• Earth From Above
• Another Earth
• "An hour for Earth" was a mistake! No activity,
  just an interesting read...
• Announcements
• Chapter 16 Test Next week
• Independent Work
• Packet 16.2
• In your notebook
• Review Pages 360 (1-8) and 368 (1-8)

3
Do Now

1. What is an ion?
2. What is a polyatomic ion?
3. What is the net charge of a compound?

4

• Homework
• Achieve 3000 Choose one of the following
• Earth From Above or Another Earth
• Announcements
• Chapter 16 Test Either Fri/Mon
• Due Today
• Packet 16.2 (late)
• In your notebook Pages 360 (1-8) and 368 (1-8)

5
Do Now
Cation Anion Compound Compound Name
Al3 O2-
Mg2 O2-
K Cl-
Cs Br-
Al2O3
Dialuminum trioxide
MgO
Magnesium oxide
KCl
Potassium chloride
CsBr
Censium bromide
6
Do Now

• Can you name the following?
• (Hint Use prefixes on the second element)
• CO
• CO2
• CCl4

Carbon monoxide
Carbon dioxide
Carbon tetrachloride
7

• 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...
• Announcements
• Chapter 16 Test Next week
• Independent Work
• Packet 16.2 Due Today
• Homework
• In your notebook Pages 360 (1-8) and 368 (1-8)

8
Carbon Compounds

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

9
COUNTING ATOMS

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

10
RULES FOR COUNTING ATOMS

• SUBSCRIPTS only refer to the atom that they are
  to the right of. For example
• H2S
• There are TWO atoms of HYDROGEN and only ONE
  atom of SULFUR.

11
LETS PRACTICE!

• MgCl2
• Atoms of Magnesium
• Atoms of Chlorine

1
2
Al2S3 Atoms of Aluminum Atoms of Sulfur
2
3
12
COEFFICIENTS

• 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 ISNT A SUBSCRIPT BEHIND AN ELEMENT,
THERE IS ONLY ONE ATOM OF THAT ELEMENT!
13
PRACTICE

• 2H2SO4
• Atoms of Hydrogen
• Atoms of Sulfur
• Atoms of Oxygen

4
2
8
3CH3OH Atoms of Carbon Atoms of Hydrogen Atoms
of Oxygen
3
9 3 12
3
14
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
15
THIS COULD BE A LITTLE TRICKY

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

3
2
8
Al2(SO4)3 Atoms of Aluminum Atoms of
Sulfur Atoms of Oxygen
2
3
12
16
What about this BAD BOY???

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

6
4
16
17
Flash Review Tell your neighbor!

• How many bonds can each of the following elements
  make?

H 1 bond
Oxygen can make 2 bonds because it has 2 free
valence electrons.
C 4 bonds
18
Valence Electron Review
O, H, C
O
C
H
19
Carbon

• can make 4 bonds with other elements in a
  compound.
• an essential element to all living things.

20
Carbon Bonds

• Carbon bonds
• Single bonds
• Double bonds
• Triple Bonds too!

21
Carbon Structures

• 3 types of structures
• Straight chains

22
Carbon Structures

• Straight Chains
• Branched Chains

23
Carbon Structures

• Straight Chains
• Branched Chains
• Rings

24
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
25
Guided Practice What is the chemical formula of
the compound?

• Copy the Compound
• Draw in carbon atoms.
• Draw in hydrogen atoms.
• Count the atoms of each element.
• Write the chemical formula.

C
H
26
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 bond Double bond Triple bond
27
Pair Share

• Why are carbon compounds so important to
  understand?

Because carbon is an essential element to all
living things.
28
Pair Share

• What is the chemical formula of the compound?

C9H18
29
Practice

• Write the chemical formula for each carbon
  compound.
• Draw the carbon compound for the chemical formula
  below.
• C4H10

30
Summary (2-3 sentences)

• Why is carbon the most essential element for
  life?