Catalyst
• Look over your learning logs
• What are the three learning targets that you
think will be the hardest for you? Copy them
down.
• Why do you think that?
End
Binder Organization
• Binder checks on each review day for each of
our unit test
• You should have tabs labeled with the
following (1) Learning Targets and Daily Work
Organizers, (2) Notes, (3) In Class Work, (4)
Homework, (5) Labs, Lab Repots, and Projects,
and (6) Exit Slips, Quizzes, Tests
• Everything you are given will now have a page
number and this will help you keep your
binder in the proper order.
Sentence Starters
Important Dates!
• Rough Draft of
Procedure/Results –
February 21st-22nd
• Rough Draft of
Discussion – Tuesday
March 7th-8th
• Rough Draft of
Introduction –February
28th
• Final Draft of Report –
March 14th-15th
Top Achievers (>80%)
Period
1
Jackpot Alvarado
Ashley Cabrera
Janeth Castaneda
Ester Cruz
Edgar Escarzaga
Adrian Espinoza
Rudy Leon
Fernanda Magdaleno
Ana Mercado
Miguel Angel-Padilla
Jessica Sanchez
Joy Velez
Maria Veliz
Angelica Zessati
Top Achievers (>80%)
Period
6
Henry Rodriguez
Luis Garcia
Maria Servera
Top Achievers (>70%)
Period 3
Elizabeth Arroyo
Haide Verdin
Xavier Chavez
Jonathon Camacho
Kathy Rodriguez
Linette Hernandez
Top Achievers (>70%)
Period 4
Ricardo Interiano
Mike Davalos
Breidy Rodriguez
Melissa Rodriguez
Top Achievers (>70%)
Period 2
Noe Bonfil
Armando Raya
Genesis Acajabon
Biggest Growth (>15% Growth)
Period 3
Toni Martinez
Biggest Growth (>15% Growth)
Period 1
Jackpot Alvarado
Ashley Cabrera
Adrian Espinoza
Angelica Zessati
Biggest Growth (>15% Growth)
Period 6
Maria Servera
Biggest Growth (>15% Growth)
Period 4
Melissa Rodriguez
Elizabeth Ayala
Biggest Growth (>15% Growth)
Period 2
Genesis Acajabon
Leslie Martinez
Valencia Alamilla
Marlene De La Torre
Monae Warthen
Mysty Carpenter
Rashaun Hicks
Today’s Learning Target
• LT 8.3 – I can hypothesize about the impact
that concentration, temperature, and pressure
have on the rate of a chemical reaction.
McDonald’s French Fries Reading
• Read the article with your group.
• Answer the questions and be prepared to
discuss with the class.
Reading Debrief
• What is decomposition?
• Why don’t McDonalds fries or burgers decompose?
• How can we slow the rate at which something
decomposes?
• Should we be adding chemicals to our foods in order
to preserve them?
• What other questions did you have during this
reading?
Unit 8 – What is McDonald’s Putting In
Its French Fries?
LECTURE 8.1 – FACTORS ON RATE
OF REACTION
What are ways to impact the rate of
reaction?
I. Concentration and Rate
• As you increase the concentration, the rate of
reaction increases.
• The higher the concentration the more
collisions that are occurring, which increases
the rate.
II. Temperature and Rate
• As you heat up
molecules they begin
to move faster.
• The faster molecules
move the more they
collide, which means
a faster rate.
III. Pressure and Rate
• As you increase the pressure molecules collide
more into the wall of the container and into
each other.
• Therefore, as you increase pressure, you
increase the rate of the reaction.
Summarize
Use the following words:
• Pressure
• Temperature
• Concentration
• Rate
• Collisions
Lab – Alka Seltzer Rockets
• Read and annotate the procedure for the lab
Lab Logistics
• You will be working in groups of 4
• Decide who will take on each role:
(1) Dropper (drops in tablet)
(2) Capper (puts caps on test tube and turns upside
down)
(3) Cup Placer (places cup over test tube)
(4) Timer/measurer
LAB DEMONSTRATION
Expectations
• Explain the influence of
(1) concentration and (2)
temperature influence
the rate of a reaction of
Alka Seltzer.
• You will turn in 1 COPY
PER GROUP of your
findings and post-lab
questions at the end of
class.
Lab Work Time
Post-Lab Analysis
Exit Ticket
1. Complete the following statements:
a. As pressure increases, rate ____________
b. As temperature decreases, rate _________
c. As concentration increases, rate ________
2. Pick one of the statements in a – c and explain
why a change in rate is observed.
College-Ready Question:
2CO + O2  2CO2
If the above reaction takes place inside a sealed reaction
chamber, then which of these procedures will cause a decrease
in the rate of reaction?
A raising the temperature of the reaction chamber
B increasing the volume inside the reaction chamber
C removing the CO2 as it is formed
D adding more CO to the reaction chamber
Closing Time
• Turn in the lab questions as you leave.
• Work on your lab report!