1. You Will Need:
• Pencil, Colored pencils
• Assignment Log #3 – Update
w/new assignment
• Elements, Compounds and
Mixtures – 1sheets 2 sides –
Part 1
• Textbook

2. lements are pure substances
made of only one kind of atom.
s we have learned, atoms are tiny
structures found in all matter.
ost substances contain many
different atoms.
It is how those atoms are arranged
that determine whether you have
an element, compound or
mixture.

3. • One kind of atom
• Pure (because all particles are the
same)
• Smallest particle to retain
identity of the element
• Separated only in nuclear
reactions

4. Particles look like:
Every atom looks
8 exactly the same
8 w/ the same
8 number of protons
Oxygen
1
1
1
Hydrogen

5. Example:
Aluminum: Every
atom of aluminum
in this can is
exactly the same
Your Example?

6. 1. Two or more kinds of atoms
chemically bonded
2. Pure (because all particles are the
same)
3. Smallest particle to retain the
identity of the compound (SET RATIO
of particles)
4. Separated or rearranged in
chemical reactions CO
2

7. Particles look like: Every atom looks
exactly the same
w/ the same set
ratio
Carbon Dioxide –
CO2
Sodium Chloride -
NaCl

8. Example:
Salt: Every
molecule of the
compound NaCl is
exactly the same
Your Example?

9. • Two or more elements and/or
compounds blended together
physically
• Not pure (because all the
particles are not the same)
• Separation through distillation,
magnetic, evaporation, density
• No set ratio

10. Particles look like:
Each particle keeps its
own identity….they are
just “blended” together
Mixture #1
Mixture #2

11. Examples: Heterogeneous: Different
components are easy to see in this
type of blending
Homogeneous: Different components
are difficult to see because they are
evenly distributed
Your Examples?

13. Compound

15. Mixture

16. • A solution is a mixture where all the
components blend together to look
like one substance.
• A solution is a homogeneous mixture
that appears to be a single
substance.
• The solution is composed of particles
of two or more substances that are
distributed evenly among each other
and have the same appearance and
properties throughout.

17. • In solutions, the SOLUTE is the substance
that is being dissolved and usually is the
smaller quantity in the mixture.
• The SOLVENT is the substance in which
the solute is dissolved and usually is the
larger quantity in the mixture.
• It is the SOLVENT that is doing the
dissolving.
• Go to page 144-145 in your textbook:
Give examples of solutions in various
states.

18. • Homogeneous: 2 or more
things evenly blended and
disappear into each other.
• Solute – Smaller quantity
• Solvent – Larger quantity
• Solution – a homogeneous
mixture

19. • Heterogeneous: 2 or more
things put together and still
can be seen.
• No set RATIO.

20. 1. We now know the definition of
Element, Compounds & Mixtures
2. What do their particles look like?

21. • Elements, Compounds &
Mixtures – Sides 1 & 2
complete by Monday, April
9th
• STAR Cards 61-100 – Due
Friday, April 13th
• ENJOY your Spring Break!