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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?