AIM: What is the difference between
organic and inorganic molecules?
DN: What elements are all living things
made up of?
What elements are all living things
made of?
Carbon, Hydrogen, Oxygen, Nitrogen
COHN
Join together they are
When atoms bond
called……
MOLECULES
• Bonds join atoms to form
molecules.
• Bonds store energy
When is energy released?
When bonds are broken.
Chemical Formulas
Represents the
chemical makeup
of a compound or
molecule.
CO2
How many carbon atoms in 1 molecule of CO2?
1
How many oxygen atoms in 1 molecule of CO2?
2
How do we write chemical compounds
using symbols?
What is H20?
How many hydrogen atoms in 1 molecule of water? 2
How many oxygen atoms in 1 molecule of water?
1
Structural Formula
shows the kinds, numbers, and the
arrangements of atoms.
It also shows the bonds
Chemical Equations and
Reactions
• Raw
A materials
+B
CProducts
or
• C A+B
Reactants/Raw Materials: What is being used, left of the
arrow
Products: What is being synthesized (made), right of the
arrow
Example of a Chemical Reaction:
C6H12O6 + O2
Glucose
Oxygen
6H2O + 6CO2
Water
Carbon
dioxide
Which are the raw materials?
Which are the products?
How many carbon atoms are present in a
molecule of glucose? 6
How many water molecules are produced? 6
How many glucose molecules are used? 1
Types of molecules
Organic
Inorganic
What do organic molecules
have in common?
Examples
C&H
Carbon and
hydrogen
** It can have other
elements in it as
well but must have
both C and H!!
Organic compounds are made by
Living Things
CO2 + H2O
inorganic
O2 + C6H12O6
organic
What do inorganic molecules
have in common?
C
O
C OR H OR neither
Organic vs. Inorganic
Organic
• Have C & H
together
• Made by living
things
Inorganic
• Have C or H or
neither, but
never both at
the same time.
• Can be found in
living things
CIRCLE all the organic molecules
H2O
CO2
HCl
CaO
CaCO3
CH3OH
NH3
KMnO4
SO3
Na2SO4
NaOH
C6H12O6
C2H6
H2CO3
C2H5OH
HNO3
KCl
H2SO4
HF
CH3COOH
FeO3
CO
C18H36O2
C3H6
NaCl
CuSO4
MnCl2
NO2
C8H18
HBr