Transcript General Chemistry Bell Ringers

General Chemistry
Bell Ringers
Bell Ringer
• Pick Up Your Copy of the Syllabus and briefly
scan it. You will need to be ready to discuss 3
Questions OR Comments you have written
down. At this time your Bell Ringer will be
written on scratch paper or in the margin of
your syllabus. You will not be turning them in
for a grade but are expected to share our 3
items as part of class discussion.
Bell Ringer
Today is the District Pretest. You will need to pick up an LXR
sheet and begin filling in the following information IN PENCIL
Name:
Period:
Class: Honors Chemistry
Test: District Chemistry Pretest
Instructor: Mrs. Senger
Identification Number: Write and Bubble
C1 Bubble your period # Example: 2, 3, or 4
C2 is my teacher code: 6L
Bell Ringer
Our First Learning Log Entry! Have your
composition note book open to first page to
begin Table of Contents
Name
Period #
General Chemistry
Page
1
2
3-4
1
Content
Table of Contents
Example: BR 9/9
Section 1.1
Describe the classification of matter for
water and for oxygen. You might find the
image above helpful as well as the flow
diagram on page 42 of your book.
Measurements Lab Day!
Have your Composition Notebook out for Labs
(NOT the same as Learning Log)
Begin your log for the Table of Contents
Name
Period #
General Chemistry
Lab Book
1
Page Content
1
Table of Contents
2
Measurements
Lab
Bell Ringer
Have your Lab Notebooks out for a quick check
to make sure you are ready to continue with
data collection.
Bell Ringer
Paul tells his friend that the sun rising in the east
and setting in the west is a theory. Julie tells him
that he his wrong.
Defend Julie’s reasoning for stating that Paul’s
statement is false.
Copy the Flow Chart Below into your 9/15
Bell Ringer Entry. Answer: What classification
of matter is table salt (NaCl)?
Classification of Matter
Learning Log Exit Question
Before you leave today, write one question you
could ask about the content we studied today.
The question should be either short answer and
can begin with words like explain, predict,
evaluate, or compare. Avoid questions that
simply ask for a list.
Write them on a sheet of paper to be handed in
as you leave the classroom.
Bell Ringer
Pick up your Exit Question from yesterday.
Trade your question with the partner at your
table. If your partner is absent then find another
person that is solo to switch with.
Solve their question in your learning log for
today’s Bell Ringer
Classify each of the properties below as either a Chemical
or Physical Property and discuss the your logic in
identifying which property they belong to.
Substitute
Properties of
MatterHere…Did not use this slide
a.
A.
B.
C.
D.
A chemical change
Cannot determine without
additional information
Neither a physical nor a
chemical change
A physical change
b.
A. A chemical change
B. Cannot determine without additional
information
C. Neither a physical nor a chemical
change
D. A physical change
c.
A.
B.
C.
D.
A chemical change
Cannot determine without additional
information
Neither a physical nor a chemical
change
A physical change
Describe the classification of matter for water and
for oxygen. You might find the image above helpful
as well as the flow diagram from our Bell Ringer on
Sept 15th or page 42 of our book.
Chapter 1 Quiz
• Chapter 1 Learning Logs are due…Place in the
basket for grading
• You will be taking the team test found on page
47 as a review for this chapter. Please have a
piece of paper out ready to participate when I
give you your Clock Partner for today.
Separation of a Mixture Lab Day!
Have your Composition Notebook out for Labs
Make the entry in the Table of Contents
Name
Period #
General Chemistry
Lab Book
1
Page Content
1
Table of Contents
2
Measurements
Lab
3
Separation of a
Mixture
Bell Ringer
You will be continuing your lab on Separation of
Mixtures. BEFORE you can begin, your lab must
be checked to ensure that it has the following
parts:
Questioning:
Predicting:
Procedure:
Safety:
Bell Ringer
This is your final day of the Separation of
Mixtures Lab. Be seated and ready for
attendance before finishing your lab write ups.
Remember that your final sections should have
the following parts:
Data & Observations:
Calculations & Results:
Discussion of Results:
Additional Questions:
Bell Ringer
Make a T-Chart
On the left side write any sample from below
that is a pure substance. On the right side write
any sample that is a mixture.
Blood, Banana Split, Granite, Air, Water, Tap
Water, Sugar, Peanut Butter, Copper, Carbon
Monoxide and Gatorade
Bell Ringer
Write one complete sentence with a WHY you
think that way…
What element makes up half the Earth’s crust,
oceans and atmosphere? This element is also
the most abundant element in the human body.
No peeky in the book for answers…or Siri or
other Siri wantabe
Bell Ringer
Write the chemical names for:
Fe
Au
K
Write the chemical symbols for:
Lead
Silver
Calcium
Bell Ringer
We know that for every water molecule there
are 2 hydrogen atoms and 1 oxygen atom.
Which of Dalton’s Theory rules does this apply
to? Don’t just tell write the number.
Explain why it fits that rule.
Bell Ringer
Complete the chart below:
Element
# Protons
Ca
20
# Neutrons
# Electrons
Mass #
40
Li
4
N
7
C-14
7
7
14
Cl-1
18
Al+3
14
Bell Ringer
Convert 35 hours to seconds and show all work!
Bell Ringer
Label the provided Periodic Table with the titles:
Alkali, Alkaline Earth, Transition, Halogen, Nobel
Gas, Lanthanides and Actinides.
Use page 69 as reference if needed.
Next, mark your metalloids (semiconductors) in
their distinct stair step pattern.
Bell Ringer
Copy and Complete the Chart Below into your
Learning Log. Feel free to use Section 3.5 for
reference if needed.
Term
What Particle Changes?
Elemental Transmutation
Electron
Isotope
Electron is Lost
Anion
Bell Ringer
Your Learning Log for Chapter 3 is due
tomorrow! Please take 3 minutes to refer to the
Document Camera image and double check that
your log is complete.
If you are missing ANY of these items…Get them
fixed tonight to earn full credit!!!
Bell Ringer
If you were provided with A
Z
What would A, Z and X stand for?
Bell Ringer
You will need this whole period to take the
Chapters 1,2 & 3 Exam…
You may use scratch paper if needed or a
calculator but NOT a cell phone.
Please pick up your remote and be ready to
begin. Good Luck!!!
Percentage of Water Lab Day!
Have your Composition Notebook out for Labs
Make the entry in the Table of Contents
Name
Period #
General Chemistry
Lab Book
1
Page Content
1
Table of Contents
2
Measurements
Lab
3-5
Separation of a
Mixture
6-9
Percentage of
Water
Bell Ringer
You will be continuing your lab on Percentage of
Water. BEFORE you can begin, your lab must be
checked to ensure that it has the following
parts:
Questioning:
Predicting:
Procedure:
Safety:
Bell Ringer
This is your final day of the Percentage of Water
Lab. Be seated and ready for attendance before
finishing your lab write ups. Remember that
your final sections should have the following
parts:
Data & Observations:
Calculations & Results:
Discussion of Results:
Additional Questions:
Bell Ringer
Identify each of the following compounds as Ionic (metal and a
nonmetal) or Covalent (nonmetal and nonmetal).
Then put a * next to any that are Ionic with a transition metal.
N2O5
NaCl
FeO
KI
BF3
MnO2
MgO
CuCl
Bell Ringer
These three compounds below are not “happy.”
Adjust their transcripts to make their charges
balance:
Al3O2
KBr2
SnFl named tin (II) fluoride
Bell Ringer
Notice that the following are polyatomic ions.
You will want to refer to page 109 for our chart.
Name the following:
Na2SO3
Fe(NO3)3
Na2SO4
Write the formula for the following:
Cobalt (II) perchlorate
Calcium hydroxide
Sodium Phosphate
Potassium permanganate
Potassium chlorate
Ammonium Dichromate
Copper (II) nitrite
Bell Ringer
Notice that the following are polyatomic ions.
You will want to refer to page 109 for our chart.
Name the following:
Na2SO3 Sodium sulfite
Fe(NO3)3 Iron (III) nitrate
Na2SO4 Sodium sulfate
Write the formula for the following:
Cobalt (II) perchlorate Co(ClO4)2
Calcium hydroxide Ca(OH)2
Sodium Phosphate Na3PO4
Potassium permanganate KMnO4
Potassium chlorate KClO3
Ammonium Dichromate (NH4)2Cr2O7
Copper (II) nitrite Cu(NO2)2
Bell Ringer
What is the name of the following acids?
HClO4
HClO2
Bell Ringer
What is the name of the following acids?
HClO4
Note the name of ClO4 is perchlorate from our
polyatomic ion chart. You would change the name
to –ic and add acid so…perchloric acid
HClO2
Note the name of ClO2 is chlorite on our polyatomic
ion chart. You would change the ending to –ous and
add acid so…chlorous acid
Flame Test Lab Day!
Have your Composition Notebook out for Labs
Make the entry in the Table of Contents
Name
Period #
General Chemistry
Lab Book
1
Page Content
1
Table of Contents
2
Measurements
Lab
3-5
Separation of a
Mixture
7-9
Percentage of
Water
11-15 Flame Test Lab
Bell Ringer
You will be continuing your lab on Flame Tests.
BEFORE you can begin, your lab must be
checked to ensure that it has the following
parts:
Questioning:
Predicting:
Procedure:
Safety:
Bell Ringer
This is your final day of the Flame Test Lab. Be
seated and ready for attendance before finishing
your lab write ups. Remember that your final
sections should have the following parts:
Data & Observations:
Calculations & Results:
Discussion of Results:
Additional Questions:
Bell Ringer
Preform the calculation below and be prepared
to share your answer.
3.56 x 95.7 =
45.8936
+162.03
Bell Ringer
Preform the calculation below and be prepared to
share your answer.
3.56 x 95.7 = 340.692 WRONG
341
45.8936
+162.03
217.9236 WRONG
217.92
Bell Ringer
How many significant digits?
201
210
2.10
0.210
0.0210
2100.
Bell Ringer
How many significant digits?
201 3
210 2
2.10 3
0.210 3
0.0210 3
2100. 4
Bell Ringer
Write the following in Scientific Notation:
3 400 000
6 700
0.000 008 4
Write the following in long form:
8.97 x 105
3.4 x 10-4
9 x 106
Bell Ringer
Write the following in Scientific Notation:
3 400 000 3.4 x 106
6 700 6.7 x 103
0.000 008 4 8.4 x 10-6
Write the following in long form:
8.97 x 105 897 000
3.4 x 10-4 0.000 34
9 x 106 9 000 000
Bell Ringer
What is the correct unit for the answer
to the problem below?
quark
goober
passel2
speck
goober
passel
parsec speck=
quark2 passel
Bell Ringer
Given the following, convert one
fizzle to frizzles.
3 swizzles = 7 twizzles
1 fizzle = 2 drizzles
2 twizzles = 14 sizzles
1 swizzles = 20 frizzles
8 drizzles = 6 sizzles
Bell Ringer
Convert 65 mi/hr to in/min
Bell Ringer
Calculate the number of kilometers (km) there
are in 1.549 micrometers (μm).
Bell Ringer
Today we are practicing conversions using the
Writing Across the Curriculum Rubric.
Please pick up the Bell Ringer Sheet and begin
writing your MINIMUM 5 sentence paragraph
into your Learning Log.
Bell Ringer
You have been working at a fast food restaurant for
the past 35 years wrapping hamburgers. Each hour
you wrap 184 hamburgers. You work 8 hours per day.
You work 5 days a week. You get paid every 2 weeks
with a salary of $840.34. How many hamburgers will
you have to wrap to make your first one million
dollars?
When we are finished, TURN IN YOUR LEARNING LOG!
Due Today!!!
Bell Ringer
You will need this whole period to take the
Chapters 4 & 5 Exam…
You may use scratch paper if needed or a
calculator but NOT a cell phone.
Please pick up your remote and be ready to
begin. Good Luck!!!
Bell Ringer
A teacher has 3 students with the following test
grades:
Student A: 80,90,90,90,100
Student B: 80,80,80,90,100
Student C: 80,90,100,100,100
Is it fair to say that the average of 80,90,& 100 is
90% so every student should have a 90%? Defend
your anwer.
Bell Ringer
What contains more atoms: 2.51 grams of Nickel
or 3.42 grams of Aluminum?
Hint: First you have to figure out who has the
most moles…then use the conversion equivalent
to change moles to atoms.
Bell Ringer
Which has a higher Molar Mass?
CaOH or BF3
What percentage of mass does Oxygen make up
in the formula CaOH?
Bell Ringer
Aluminum oxide commonly forms in nature. IF
you have 4.151 grams of Al
and 3.692 grams of O react, what is the
empirical formula for the compound?
Bell Ringer
Juglone has the formula C10H6O3. What is the
molar mass of juglone? If you have 2.41 grams
of pure juglone, how many
moles does that represent?
Bell Ringer
A white powder is analyzed and found to have
the empirical formula of P2O5. The compound
has a molar mass of 283.88 g/mol. What is the
compound’s molecular formula?
Hint: n =
molar mass
Empirical formula mass
Ba,Ca, & Mg Cation Lab Day!
Have your Composition Notebook out for Labs
Make the entry in the Table of Contents Day 1/4
Name
Period #
General Chemistry
Lab Book
1
Page Content
1
Table of Contents
2
Measurements
Lab
3-5
Separation of a
Mixture
7-9
% of Water
11-15 Flame Test Lab
17-21 Ba, Ca, & Mg
Cation Lab
Bell Ringer Day 2/4
You will be continuing your lab on Ba, Ca & Mg
Cations. BEFORE you can begin, your lab must
be checked to ensure that it has the following
parts:
Questioning:
Predicting: (note: first test is to set a
base…Unknown Day is your prediction)
Procedure:
Safety:
Bell Ringer Day 3/4
This is your UNKNOWN day of the Ba, Ca, & Mg
Cations Lab. Be seated and ready for attendance
before finishing your lab write ups. Remember that
your final sections should have the following parts:
Data & Observations:
Calculations & Results:
Discussion of Results:
Additional Questions:
What is solubility?
Define precipitants?
Bell Ringer Day 4/4
This is your final day of the Ba, Ca, & Mg Cations
Lab. Be seated and ready for attendance before
finishing your lab write ups. Remember that your
final sections should have the following parts:
Data & Observations:
Calculations & Results:
Discussion of Results:
Additional Questions:
What is solubility?
Define precipitants?
Bell Ringer
Make a T Chart. On the left side title it “Chemical Change”
and the the right side title it “Physical Change”
Classify the following in the T-Chart under their appropriate
headings:
Paper Burns
Necklace Tarnishes
Glass Breaks
Rock is ground into Powder
Bumper Rusts
Hydrogen Peroxide bubbles
Ice Melts
Pop Rock Candy fizzes in mouth
Dead Bird Rots
Bell Ringer
Compose the balanced chemical equation for
the reaction below. Label the reactant and
product sides of your equation:
Solid Mercury (II) oxide decomposes to form
gaseous carbon dioxide and gaseous oxygen.
Bell Ringer
Compare and contrast Coefficients, Superscripts
and Subscripts.
Hint: This may include what do they stand for or
what do they tell us in the chemical equation…
Bell Ringer
Solid potassium reacts with liquid water to form
gaseous hydrogen and potassium hydroxide that
dissolves in water.
Translate this word description into a balanced
chemical equation.
Bell Ringer
You will need this whole period to take the
Chapters 6 & 7 Exam…
You may use scratch paper if needed or a
calculator but NOT a cell phone.
Please pick up your remote and be ready to
begin. Good Luck!!!
Bell Ringer
Turn to page 245 of your book to view the
solubility rules.
Classify the following as soluble or insoluble.
BaCrO4
KCrO4
KNO3
Na2SO4
Bell Ringer
Is the following statement True or False?
Defend your answer.
“Metal and nonmetal reactions are always
oxidation-reduction reactions.”
Hint: Look up oxidation and reduction and
determine what they might have in common
with metals and nonmetals.
Bell Ringer
Classify the following reactions as synthesis,
decomposition, single displacement, double
displacement or combustion reactions.
S8 + O2  SO2
BaCl2 + Na2SO4  BaSO4 + NaCl
C2H2 + O2  CO2 + H2O
AlN  Al + N2
Fe2O3 + Al  Al2O3 + Fe
Bell Ringer
+HNO3 (aq) + KOH (aq)  H2O (?) + KNO3 (?)
Use your solubility rules on page 245 to
determine the solubility of the products for the
equation above.
Bell Ringer
What do the following have in common?
Bell Ringer
2 Na (s) + Cl2 (g)  2NaCl
A student says that the Na is being oxidized. Is
this student correct or incorrect?
Defend your answer.
Bell Ringer
I am making Holiday Cookies and my recipe calls
for 4 cups of flour and 3 cups of sugar to make
one batch. I have 9 cups of flour and 6 cups of
sugar left. How many batches can I make before
I run out of an ingredient? Which ingredient
runs out first?
Bell Ringer
N2 (g) + H2 (g)  NH3 (g)
“You need 3 moles of H2 for every 2 moles of N2”
is incorrect. Balance the equation and rewrite
the statement so that it is true.
If I have 1.35 moles of H2 and N2 gas in surplus,
how many moles of NH3 can I make?
Bell Ringer
Aluminum in a powdered form will react with
iodine to produce AlI3. The balanced chemical
equation is below. If a student concludes that it
will take 495 grams I2 to completely react with
35.0 grams Al, are they correct?
2Al (s) + 3I2 (s)  2AlI3 (s)
Be careful!!! I2 is not just the mass of I alone!
Bell Ringer
You have 25.0 kg (convert!) of N2 gas and 5.00 kg
(convert!) of H2 gas. When mixed they form
ammonia. Calculate the amount of ammonia we are
able to produce in grams.
N2 (g) + H2 (g)  NH3 (g)
Things to consider…Is the equation balanced? How
many moles is each of the reactants? How will run
out first? Did I remember to convert one final time
to change moles of ammonia to grams?
Bell Ringer
Flip back to your bell ringer from Dec 19th before
the break. You have calculated the theoretical
yield. If our actual yield was to collect 27.2 kg of
NH3 what is my % yield?
Bell Ringer
Methanol is produced from carbon monoxide
and hydrogen gas. If you have 6.85 x 104 g of CO
gas and 9.20 x 103 of hydrogen gas, calculate the
theoretical yield of methanol.
What is the % yield if the experiment
collected 3.29 x104 grams?
Bell Ringer
You will need this whole period to take the
Chapters 6 & 7 Exam…
You may use scratch paper if needed or a
calculator but NOT a cell phone.
Please pick up your remote and be ready to
begin. Good Luck!!!
Bell Ringer
Compare and contrast Temperature and Heat in
no less than a 5 sentence paragraph.
Topic Sentence
Commentary
Commentary
Commentary
Conclusion Sentence
Bell Ringer
A little kid is at the top of a slide and has 1000
Joules of Potential Energy. After getting to the
bottom of the slide they only have 900 Joules of
Kinetic Energy. It appears that 100 J has been
lost. Explain how this does not violate the law of
conservation of energy.
Bell Ringer
Complete the following diagram in your
Learning Log:
3 Things a Student
Should Make Sure They
Do When Speaking
3 Things That Make a
Poster Nice
Our Group
Presentation
3 Things My Group Will
Try to Avoid
1 Way to Go Above and
Beyond to Make
Everyone Think Ours Was
the BEST!
Bell Ringer
Where does the Ducky represent its highest and
lowest kinetic energy?
How does this relate to the Duck’s highest and
lowest potential energy?
Bell Ringer
Pull ups diapers marketed a diaper that became
cold when the urine reacted with a chemical in
the lining. The idea was that little kids would
start using the toilet because they didn’t like
their privates cold. Instead, kids took the diapers
off and peed on the floor in secret. They didn’t
succeed in the market. Were scientists
trying to fool children with an
exothermic or endothermic reactions?
Bell Ringer
You have a 2.1 gram sample of a metal that
appears to be gold. It requires 6.2 J of energy to
change its temperature from 23 degrees C to
45.7 degrees C. Is the metal pure gold?
Hint: Find the temperature change and use to
solve for specific heat. Specific heat of gold is
0.13 J/gC
Bell Ringer
When 1 mol of methane is burned at constant
pressure, 910 kJ of energy is released as heat.
Calculate the H for a process in which a 6.1 g
sample of methane is burned at constant pressure.
Hint: Convert grams to moles for CH4. Your
relationship is 1 mol = 910 kJ…use this relationship
to calculate the heat change for your moles
calculated.
Bell Ringer
Use the word Enthalpy to explain one of the
following:
1) A dead squirrel is decomposing
2) A fart can be smelled by your neighbors
3) Your cup of coffee cools off
Group IA and IIA Cation (Ba,Ca,Mg)
Lab Day!
Have your Composition Notebook out for Labs
Make the entry in the Table of Contents
Name
Period #
General Chemistry
Lab Book
1
Page Content
1
Table of Contents
2
Measurements
Lab
3-5
Separation of a
Mixture
7-9
Percentage of
Water
11-15 Flame Test Lab
17-19 Group IA & IIA
Cations
Bell Ringer
You will be continuing your lab on Group IA & IIA
Cation identification. BEFORE you can begin,
your lab must be checked to ensure that it has
the following parts:
Questioning:
Predicting: Concerning your unknown
Procedure: (check for variables)
Safety:
Bell Ringer
This is your Unknown Identification portion of
the lab on Group IA & IIA Cations. Be seated and
ready for attendance before finishing your lab.
Remember that your final sections should have
the following parts:
Data & Observations:
Calculations & Results: Qualitative!!!
Discussion of Results:
Additional Questions: COMPLETE SENTENCES
Bell Ringer
This is your final day of the lab on Group IA & IIA
Cations Lab. Be seated and ready for attendance
before finishing your lab. Remember that your
final sections should have the following parts:
Data & Observations:
Calculations & Results: Qualitative!!!
Discussion of Results:
Additional Questions: COMPLETE SENTENCES
Bell Ringer
Pick up your remotes.
Today is Review Day!!! for you final exam.
Bell Ringer
Periods 1-6 Pick Up your Remotes to Continue
Reviewing for Final…
Period 7: Final Exam Day
Bell Ringer
Periods 1,3,5
Pick up your remotes.
Have out scratch paper, a calculator (no cell
phones), and Periodic Tables.
Bell Ringer
Periods 2,4,6
Pick up your remotes.
Have out scratch paper, a calculator (no cell
phones), and Periodic Tables.
Bell Ringer
The lightening ball is a fun device that
Americans can buy and enjoy in their homes.
What makes the purplish pink lightning bolts
that jump from the center to the outside glass?
Hint: Think about the flame test lab