Organic
Chemistry
Teacher Andrea Montalvan
9A
Table of contents
01
03
Lesson 01
Introduction to organic
chemistry
Practice
Questions
Now it´s your turn!
02
Lesson 02
Writing alkanes, alkenes and
their combustion.
Remember
There will be a written Quiz on
this topic once Lessons 01 &
02 are complete.
Learning Objectives:
Lesson 01 & 02
1.1
1.2
1.3 & 02
Understand that carbon
forms a vast
range of compounds and
the study of
their properties is known
as organic
chemistry.
Define the term
hydrocarbon as
compounds formed
solely by carbon
and hydrogen.
Write and interpret
general formulae of
compounds in the same
homologous
series, limited to alkanes.
Success Criteria
01
02
Recall that carbon can
have four covalent bonds
and make the backbone of
organic compounds.
Describe the main
reactions of alkanes as
combustion and
substitution and write
example equations.
03
04
Identify and draw the
structures of ethane and
ethene.
Identify alkenes as having
at least one double bond.
01
Introduction to
Organic Chemistry
What you need to know…
Organic
Chemistry
Studies the structure, properties and
reactions of organic compounds that
contain carbon in covalent bonding.
Chains
Rings
Carbon atoms can join
to each other to form
long chains. Atoms
from other elements
can attach to the chain.
Carbon atoms can also
arrange themselves in
rings.
Bonds
The carbon atoms in a
chain can be linked in
single, double, or triple
covalent bonds.
Carbon Atoms look like
THIS
Keyword!!!
Hydrocarbona compound that
contains carbon
and hydrogen
only.
Whoa!
Learn how to name them.
These are Alkanes.
They are saturated hydrocarbons.
Only have single bonds.
They have a recipe…
All alkanes have a general molecular formula. It does not matter what
happens, if your compound is an alkane their formula looks like this:
And the longer the chain gets, the closer the molecules pull together.
Speaking of formulas…
There are 3 types of formula for
any given compound
ORGANIC
COMPOUND
XYZ
A
Empirical
B
Molecular
C
Structural
It depends on what
you want to show
A
Empirical
Formula
Molecular
Formula
Structural
Formula
Important.
Simplest form.
Shows the ratio of atoms
in a compound.
Most important.
Represents exactly how
many atoms of each
element are in a
molecule.
Even more important.
This formula shows how
the atoms are bonded
together in a diagram.
B
C
They look like THIS
Have some Examples
Now it is your turn!
REACH
LESSON 04
TO UNLOCK
THE REST OF
THE CHART
Fun Fact
Did you know most fuels we use are alkanes?
This is because they burn very exothermally.
Some examples are:
- Methane
- Butane
- Propane
NEW
KEYWORD!!!
Homologous seriesis a family of organic compounds that:
-
Have the same general formula.
-
Have similar chemical properties.
-
Show gradual increase in physical
properties.
Meet
-ALKENESAre not the same as alkanes.
Alkenes are unsaturated hydrocarbons.
They have a double bond between a pair
of their carbon atoms.
e
Classwork
Using your coursebook, solve
questions 10.1-10.6, 10.8, 10.10
and 10.11; Chapter 10: Organic
Chemistry.
For 1 stamp on your punch card.
02
&03
Alkanes and
Alkenes
Homologous series;
the cousins of the chemistry
world.
And how to burn them.
What?
- For 2 extra points What is an Alkene?
Meet
-ALKENESNot the same as alkanes.
Alkenes are unsaturated hydrocarbons.
They have a double bond between a pair
of their carbon atoms.
**Review Slide**
Most common ones
Bromine Test
Activity 01
Using your Chemistry Workbook, page
127, solve exercise 10.1a.
For 1 class stamp on your punch-card.
Allotted Time:
5 minutes
Now…
Let's talk
FIRE!!
Boringly known as….
Combustion
Combustion
A chemical reaction in which a
substance reacts with oxygen
and produces heat
(exothermal).
The products of the
combustion of hydrocarbons
(alkanes and alkenes) are:
●
●
●
Carbon Dioxide (CO2)
Water (H2O)
Heat/Light
Combustion of Alkanes
Combustion:
Alkanes VS Alkenes
100%
Not
100%
Complete
Incomplete
They burn completely and
leave little to no residue.
The flames are blue.
They do not burn completely
unless there is high levels of
oxygen. Can generate smoke
and soot. The flames are red.
Now you try!
Write and balance the equation for combustion of ethane.
Valid for:
1 point
Another One!
Write and balance the equation for combustion of propane.
Valid for:
1 point
Last One
I Promise…
Write and balance the equation for combustion of butene.
Valid for:
1 point
Activity 02
Using your Chemistry Workbook, page
128, solve exercise 10.2a, b and c.
For 1 class stamp on your punch-card.
Allotted Time:
10 minutes
It´s
Quizzis
Time!!!
Bring out your devices (no
phones) and log into the
Quizziz room with the code
provided by your teacher.