Bell Ringer 8/26/15
Welcome Back!
Please take a moment to write down some
materials you will need for this class:
2 composition book lined, 1 composition book
graphing, calculator with scientific notation and
ability to do log functions, pens for labs, pencils
for homework, and $20 lab fee.
Bell Ringer 8/27/15
3 Question Mini Pre-Quiz
Which of these are chemical properties of matter?
I) Corrosiveness
II) Density
III) Flammability
IV) Melting point
A) I and II
B) I and III
C) II and IV
D) III and IV
Which of these atomic and/or molecular views represent
pure substances?
I
II
III
IV
A) I and III
B) II and IV
C) I, II and IV
D) II, III, and IV
Extensive properties of a pure substance depend on sample size
whereas intensive properties are characteristic of that substance.
Which of these properties are intensive?
I) Color
II) Mass
III) Density
A) I and II
B) I and III
C) II and III
D) I, II and III
Exit Closing 8/27/15
What are the bubbles in the bottom of a
boiling pot of water?
Bell Ringer 8/28/15
The melting point of pure benzoic acid is 122°C. Data
obtained by four students in a laboratory experiment are
shown. Which student’s data are precise but not accurate?
Student A
115°C
Student B
119°C
Student C
122°C
Student D
118°C
112°C
118°C
121°C
120°C
118°C
119°C
122°C
124°C
116°C
120°C
121°C
126°C
A) Student A
B) Student B
C) Student C
D) Student D
Bell Ringer 8/31/15
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.
Properties of Matter
Exit Closing 8/31/15
Determine which word from our
naturalistic cards was the most
difficult. Write one sentence that
summarizes the term and how it is
used in chemistry.
Bell Ringer 9/1/15
Compare and Contrast
Basic Research, Applied Research, and
Technological Development.
Exit Closing 9/1/15
We will entertain 3 questions or comments
before we leave today. You have one minute to
write down one question that you should be
prepared to share.
Bell Ringer 9/2/15
You should have out your Graphing Lab
Composition Notebook:
Please Copy the Following Heading on the TOP
of the Second Page (page 1 is Table of
Contents)
Name:
Date:
Measurement Lab
Partner:
Bell Ringer 9/2/15 Continued…
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 #
Honors Chemistry
Lab Book
1
Page Content
1
Table of Contents
2
Measurements
Lab
Exit Closing 9/2/15
Analyze the
graduated
cylinder on the
left. Reading the
BOTTOM of the
meniscus…How
much volume
would you
record in
milliliters?
Bell Ringer 9/3/15
What is the mass in grams on this
triple beam balance?
Exit Closing 9/3/15
Describe which piece of equipment is more
accurate? A digital scale or a triple beam
balance?
Bell Ringer 9/4/15
Describe which piece of equipment is more
accurate? A graduated cylinder or a triple
beam balance?
Exit Closing 9/4/15
Explain why a burette has a zero at the top and
the largest number at the bottom.
Bell Ringer 9/8/15
Distinguish between a physical and
chemical change.
Exit Closing 9/8/15
Two of the following are a truth and the other is a
falsehood. Evaluate each statement to determine
which is which and be prepared to share with the
class.
1) The state of matter with the most space
between the particles is a gas.
2) The state of matter with the least attraction is a
liquid.
3) The state of matter with the least energy is a
solid.
Bell Ringer 9/9/15
Make a T Chart for your
bell ringer and classify the
following as either a
mixture or pure
substance.
Ice cream, tap water, salt
water, honey, koolaid,
sugar, carbon
Mixture
Pure Substance
Exit Closing 9/9/15
We will entertain 3 questions or comments
before we leave today. You have one minute to
write down one question that you should be
prepared to share.
Bell Ringer 9/10/15
Rank in order which category contains the most
elements:
Metals, Metalloids (or Semiconductors) or
Nonmetals
Exit Closing 9/10/15
Sketch the Periodic Table
and Label the following
groups:
Halogens, Nobel Gases,
Alkaline Earth Metals,
Chalcogens, Alkali
Metals, Lanthanide
Series, Transition
Metals, Metalloids
(Semiconductors), and
Actinide Series
Bell Ringer 9/10/15
Bell Ringer 9/11/15
Which elements are more likely to undergo the
same kinds of reactions, those in a group
or in a period?
Exit Closing 9/11/15
What are the symbols for iron, nitrogen,
calcium and mercury?
Bell Ringer 9/14/15
You have an unknown substance. It is not a gas.
It is a solid at room temperature. It is brittle but
appears metallic. It can conduct electricity but
only under special conditions. It belongs to
group 15. What element do you have?
Exit Closing 9/14/15
What do the words homophone (English class),
homeostasis (biology), homogeneous
chromosomes (genetics), homogenized milk
(Family Consumer Science) and homogenous
mixture (chemistry) have in common?
How is that related to heterozygote (genetics),
heterosexual (Health), or heterogenous
mixture?
Bell Ringer 9/15/15
Exam 1 Chapter 1
Pick up your remote from the CPS bag. Be sure
that it is YOUR number.
You may use: Scratch paper and a Calculator.
No Cell Phones!
Exit Closing 9/15/15
If there was one question on the test you feel
like you were the best at put a star on the board
next to that question.
If there was one question on the test that was
your weakness or the weakness of your
classmates, put a heart by it (no reason for the
heart besides to see your heart drawing skills).
Bell Ringer 9/16/15
Separation of a Mixture Lab Day!
Have your Composition Notebook out for Labs
Make the entry in the Table of Contents
Name
Period #
Honors Chemistry
Lab Book
1
Page Content
1
Table of Contents
2
Measurements
Lab
3
Separation of a
Mixture
Bell Ringer 9/16/15
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:
Exit Closing 9/16/15
Describe how density can be used to separate a
mixture. List at least one example.
Bell Ringer 9/17/15
If you were stranded with only salt water to
drink, how could you purify it to have pure
water to drink?
Exit Closing 9/17/15
Total Cereal has high concentration of iron in its
flakes. How could you separate the iron
from the flakes?
Bell Ringer 9/18/15
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:
Additional Questions
1) Is this mixture homogeneous or
heterogeneous?
2) Name 3 ways that a mixture can be
separated into its pure substances.
Exit Closing 9/18/15
Open your book to page 11. Sketch your own
version of the flow chart into your exit closing.
Bell Ringer 9/21/15
Pick up the Anticipatory Guide (T/F Sheet) on
the side wall. Note that you are ONLY filling out
the T/F column one. Before we begin this
chapter we want a measure of what you know.
You are NOT graded on this column. It is only to
measure growth. AFTER the chapter, we will
finish this sheet. Please do not work ahead. You
have 5 minutes to go with your gut and guess
True or False. Do not look up answers.
Exit Closing 9/21/15
Which of the following are quantitative?
• The liquid floats on water
• The metal is malleable
• The liquid has a temperature of 55.6C
Bell Ringer 9-22-15
Complete the following conversions:
10.5 g = _____ kg
1.57 km = _____ m
3.54 g = _____ g
3.5 mol = _____ mol
1.2 L = _____ ml
358 cm3 = _____ m3
548.6 ml = _____ cm3
Exit Closing 9-22-15
If a student finds the solutions to a problem to
be 1.71 g/cm3 & 384.4 g/cm3 are they correct?
Why or why not?
1) What is the density of an 84.7 g sample of an
unknown substance if the sample occupies
49.6 cm3?
2) What volume would be occupied by 7.75 g of
this same substance?
Bell Ringer 9-23-15
The density of copper is listed as 8.94 g/cm3.
Two students each make 3 density
determinations of the samples of the substance.
Student A’s results are 7.3 g/ml, 9.4 g/ml, and
8.3 g/ml. Student B’s results are 8.4 g/cm3, 8.8
cm3, and 8.0 g/cm3. Compare the two sets of
results in terms of precision and accuracy.
Exit Closing 9-23-15
Which conversions below are correct?
560,000 = 5.6 x105
33,400 = 3.34 x104
0.0004120 = 4.120 x104
Bell Ringer 9-24-15
Perform the following operations. Express each
answer in scientific notation.
1.54 x 10-2 g + 2.86 x 10-1 g =
8.99 x 10-4 m x 3.57 x 104 m =
Exit Closing 9-24-15
If a graph is a straight line that passes through
the origin, what would it be classified as?
If a graph is a hyperbola, what would it be
classified as?
Bell Ringer 9-25-15
Determine the number of Significant Figures in
the following measurements.
6.002 cm
0.0020 m
7000 kg
10.0500 g
7000. kg
Exit Closing 9-25-15
Calculate what mass of gold that occupies
5.0 x 10-3 cm3. The density of gold is 19.3 g/cm3.
Bell Ringer 9-28-15
How many significant digits would your round
the following problem to?
16.25 g
5.1442 ml
What unit would you use?
Exit Closing 9-28-15
Draw an image that represents a bow hunter’s
target with:
•
•
•
•
Accuracy
Precision
Both Accuracy & Precision
Neither Accuracy or Precision
Bell Ringer 9-29-15
What is the sum of 2.099 g and 0.05681 g?
What is the area of a rectangular crystal that has
1.34 m by 0.7488 m lengths and widths?
Exit Closing 9-29-15
Polycarbonate plastic has a density of 1.2 g/cm3.
A photo frame is constructed from two 3.0 mm
sheets of polycarbonate. Each sheet measures
28 cm by 22 cm. What is the mass of the photo
frame?
Bell Ringer 9-30-15
Percentage of Water Lab Day!
Have your Composition Notebook out for Labs
Make the entry in the Table of Contents
Name
1
Period #
Gen/Honors Chemistry
Lab Book
Page Content
1
Table of Contents
2
Measurements
Lab
3-5
Separation of a
Mixture
6-9
Percentage of
Water
Exit Closing 9/30/15
We will entertain 3 questions or comments
before we leave today. You have one minute to
write down one question that you should be
prepared to share.
Bell Ringer 10-1-15
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:
Exit Closing 10/1/15
We will entertain 3 questions or comments
before we leave today. You have one minute to
write down one question that you should be
prepared to share.
Bell Ringer 10-2-15
No General Chemistry due to Homecoming!
Honors Chemistry- Which of the 6 essay quiz
questions is the most difficult? Which one is the
most simple?
Exit Closing 10/2/15
We will entertain 3 questions or comments
before we leave today. You have one minute to
write down one question that you should be
prepared to share.
Bell Ringer 10-5-15
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:
Exit Closing 10/5/15
We will entertain 3 questions or comments
before we leave today. You have one minute to
write down one question that you should be
prepared to share.
Bell Ringer 10-6-15
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:
Exit Closing 10/6/15
We will entertain 3 questions or comments
before we leave today. You have one minute to
write down one question that you should be
prepared to share.
Bell Ringer 10-7-15
Data was collected for the Mass and Volume of
Aluminum at 20C. Analyze the data and
determine if the relationship is directly or
inversely proportional.
Mass (g)
Volume (cm3)
54.7
20.1
65.7
24.4
83.5
30.9
96.3
35.8
105.7
39.1
Exit Closing 10-7-15
Round the following to 3 significant digits.
804.05
0.014403
1002
400
0.000625000
Bell Ringer 10-8-15
Write a one sentence summary of the rules for
counting zeros as significant digits.
Exit Closing 10-8-15
Compare the rounding rules for
multiplication/division to the rules for addition
and subtraction.
Bell Ringer 10/9/15
Chapter 2 Exam
Pick up your remote from the CPS bag. Be sure
that it is YOUR number.
You may use: Scratch paper and a Calculator.
No Cell Phones!
Exit Closing 10/9/15
If there was one question on the test you feel
like you were the best at put a star on the board
next to that question.
If there was one question on the test that was
your weakness or the weakness of your
classmates, put a heart by it (no reason for the
heart besides to see your heart drawing skills).
Bell Ringer 10/19/15
Flash back…
In one sentence define the
Law of Conservation of Mass.
Exit Closing 10/19/15
If Sulfur has an atomic mass of 32 and an overall
charge of -2, how many protons, neutrons and
electrons does it have?
Bell Ringer 10/20/15
I have 10.3 grams of Carbon.
How many atoms is that?
(Hint: you can’t go straight from grams to atoms)
Exit Closing 10/20/15
I have 3.4 x 1023 atoms of gold.
How many moles of gold do I have?
Bell Ringer 10/21/15
Write the nuclear symbol for
Lithium that has a mass of 7.
Hint…
A
X
Z
Flame Test Lab Day!
Bell Ringer 10-22-15
Have your Composition Notebook out for Labs
Make the entry in the Table of Contents
Name
Period #
Honors 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
Exit Closing 10-22-15
You will be continuing your lab on Flame Test.
BEFORE you can begin, your lab must be
checked to ensure that it has the following
parts:
Questioning:
Predicting:
Procedure: (check for variables)
Safety:
Bell Ringer 10-23-15
You will be continuing your lab on Flame Test.
BEFORE you can begin, your lab must be
checked to ensure that it has the following
parts:
Questioning:
Predicting:
Procedure: (check for variables)
Safety:
Exit Closing 10-23-15
Please check your labs to make sure you have
enough details…
Data & Observations:
Calculations & Results: ALL THEM
Discussion of Results:
Additional Questions: COMPLETE SENTENCES
Bell Ringer 10-26-15
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: ALL THEM
Discussion of Results:
Additional Questions: COMPLETE SENTENCES
Exit Closing 10-26-15
Please check your write ups to make sure you are
going to receive all your WAC points
Questioning:
Predicting:
Procedure: (check for variables)
Safety:
Data & Observations:
Calculations & Results: ALL THEM
Discussion of Results:
Additional Questions: COMPLETE SENTENCES
Bell Ringer 10-27-15
Review the 5 main points of Dalton’s Atomic
Theory on page 68. REWRITE ALL OF THEM in
order of importance. List #1 as the most
important and #5 as the least important. Be
prepared to share your reasoning why you put
them in that order.
Exit Closing 10-27-15
Describe the law of definite proportions and the
law of multiple proportions. What do they have
in common and how are they different?
Bell Ringer 10-28-15
Nuclear forces hold protons and neutrons
together in the nucleus. Why do we need a force
to hold the nucleus together?
Exit Closing 10-28-15
Predict which of the following would have the
largest amount of moles…then do the
calculations to see if you are correct. Be ready
to share your logic for how you made your
prediction.
12.15 g Mg
1.50 x1023 atoms F
Bell Ringer 10/29/15
Chapter 3 Exam
Pick up your remote from the CPS bag. Be sure
that it is YOUR number.
You may use: Scratch paper and a Calculator.
No Cell Phones!
Exit Closing 10/29/15
If there was one question on the test you feel
like you were the best at put a star on the board
next to that question.
If there was one question on the test that was
your weakness or the weakness of your
classmates, put a heart by it (no reason for the
heart besides to see your heart drawing skills).
Bell Ringer 10-30-15
Write the formula for the speed of light from
chapter 4 using the Greek symbols. Make a note
to self as to what each letter represents.
Exit Closing 10/30/15
Math Flash Back…How many moles of carbon
are in a 28.0 g sample?
Bell Ringer 11-2-15
What is faster…and why?
Visible light or X-Ray?
Microwave or Ultraviolet?
Radio wave or Infrared?
Exit Closing 11/2/15
Math Flash Back…What is the mass of 1.50 mol
of sodium, Na?
Bell Ringer 11-3-15
What does n, l, m and + ½ or -½ mean?
Write one sentence for each describing in
common words what it means. Four complete
sentences please…be ready to share.
Bell Ringer 11/3/15 Continued…
Exit Closing 11/3/15
PEN Math Flashback!
How many protons, electrons and neutrons are
in each of the following isotopes?
108
64
Ag
and
Cu
47
29
Bell Ringer 11-4-15
What is the complete electron configuration for
Nickel? Then rewrite the electron configuration
using noble gas notation.
Exit Closing 11/4/15
More math you say?
Predict which one has more mass. Then
determine the amount in moles of the following
to see if you are correct. Be prepared to share
your guess.
2.00 mol N
3.01 x 1023 atoms Cl
Bell Ringer 11-5-15
Write the orbital notation for Strontium (Sr). See
the filling diagram on page 116 for reference.
Exit Closing 11/5/15
Rutherford’s model of the atom was excellent at
explaining one part of the atom but completely
failed to explain another part. Explain the two
parts he attempted to put in his model and
show where is shortcoming was.
Bell Ringer 11-6-15
What do line emission spectrum and human
finger prints have in common?
Exit Closing 11/6/15
Use the diagram in figure 9 to answer the following:
Characterize each of the following as absorption or
emission: an electron moves from E2 to E1, an
electron moves from E1 to E3 and an electron
moves from E6 to E3.
Thinking deeper…which energy level change emits
or absorbs the highest and lowest energy?
Bell Ringer 11/6/15 Continued
Bell Ringer 11/9/15
Describe briefly what specific information is
given by each of the four quantum numbers.
Bell Ringer 11/9/15 Continued
The principal quantum number, n, describes the
energy of the orbital as well as the orbital’s
distance to the nucleus. The angular momentum
quantum number, l, signifies the shape of the
orbital. The magnetic quantum number, m,
indicates the orientation of an orbital. The spin
quantum number indicates which of an
electron’s two fundamental states within an
orbital an electron is in.
Exit Closing 11/9/15
Analyze the information provided below and
identify the elements have the following electron
configurations:
• 1s22s22p63s23p3
• [Ar]4s1
• Contains four electrons in its third and outer main
energy level
• Contains one set of paired and 3 pairs of unpaired
electrons in its fourth and outer main energy
level
Bell Ringer 11/10/15
Chapter 4 Exam
Pick up your remote from the CPS bag. Be sure
that it is YOUR number.
You may use: Scratch paper and a Calculator.
No Cell Phones!
Exit Closing 11/10/15
We will entertain 3 questions or comments
before we leave today. You have one minute to
write down one question that you should be
prepared to share.
Bell Ringer 11/11/15
How is group number and
periodic law related?
Exit Closing 11/11/15
Pick one of the three questions below and be
prepared to share your answer with the class.
1) Who is credited with developing a method
that led to the determination of standard
relative atomic masses?
2) Who discovered periodic law?
3) Who established atomic numbers as the
basis for organizing the periodic table?
Bell Ringer 11/12/15
Compare and contrast Mendeleev,
Moseley and the modern periodic table.
Alkali Reactions
https://www.youtube.com/watch?v=HvVUtpd
K7xw
Exit Closing 11/12/15
Without looking at the periodic table, identify
the period, block and group of the element that
has the electron configuration [Ar]3d74s2
Bell Ringer 11/13/15
Describe the locations of the alkali, alkaline,
halogens and noble gases on the periodic table.
Exit Closing 11/13/15
State the general period and group trends
among main-group elements with respect to
each of the following properties:
a) Atomic Radii
b) First Ionization Energy
c) Electron Affinity
d) Ionic radii
e) Electronegativity
Bell Ringer 11/16/15
Compare the periodic trends of atomic radii,
ionization, and electronegativity of main-group
elements and d-block elements.
Exit Closing 11/16/15
We will entertain 3 questions or comments
before we leave today. You have one minute to
write down one question that you should be
prepared to share.
Bell Ringer 11/17/15
What is the location of the most reactive
nonmetals and metal on the periodic table.
Exit Closing 11/17/15
We will entertain 3 questions or comments
before we leave today. You have one minute to
write down one question that you should be
prepared to share.
Bell Ringer 11/18/15
Where do you find the Lanthanide and
Actinide series? How did they get their names?
Exit Closing 11/18/15
Take out your essay quizzes. With a neighbor
decide which question is the easiest and which
one is the most difficult. Be prepared to vote
with the class.
Bell Ringer 11/19/15
You are told that the ionization energies for an
atom are E1: 1086, E2: 2353, E3: 4621,E4: 6223,
and E5: 37 830. You have the choice of Be, C, O
and Mg…Which element does the ionization
series describe and how do you know?
Exit Closing 11/19/15
We will entertain 3 questions or comments
before we leave today. You have one minute to
write down one question that you should be
prepared to share.
Bell Ringer 11/20/15
Chapter 5 Exam
Pick up your remote from the CPS bag. Be sure
that it is YOUR number.
You may use: Scratch paper and a Calculator.
No Cell Phones!
Exit Closing 11/20/15
We will entertain 3 questions or comments
before we leave today. You have one minute to
write down one question that you should be
prepared to share.
Bell Ringer 11/23/15
What is the main difference between
a mixture and a compound?
Exit Closing 11/23/15
What types of bonds would be expected
between the following atoms?
Li and F
Cu and S
I and Br
Bell Ringer 11/24/15
What is the relationship between
electronegativity and type of bond?
Exit Closing 11/24/15
How many pairs of electrons are shared in the
following types of covalent bonds?
Single
Double
Triple
Bell Ringer 11/30/15
What is the dot diagram for the following
elements?
Na
Sb
Br
Exit Closing 11/30/15
Explain why most metals are malleable and
ductile but ionic crystals are not.
Bell Ringer 12/1/15
How can a polyatomic ion be both ionic and
covalent at the same time?
Exit Closing 12/1/15
Compound B has a lower melting and boiling
point than compound A. At the same
temperature, compound B vaporizes faster than
compound A. If one of these compounds is ionic
and the other is molecular, which would you
expect them to be? Explain your reasoning…
Bell Ringer 12/2/15
Draw the dot diagrams for
O
O2
N
N2
Example Fluorine
Exit Closing 12/2/15
What type of intermolecular force contribute to
the high boiling point of water? Explain…
Bell Ringer 12/3/15
Draw the Lewis Structure and predict the
molecular geometry of the following molecules:
SO2
CI4 (carbon and iodine)
BCl3 (boron and chlorine)
Exit Closing 12/3/15
Why are metals malleable and ductile while
ionic compounds are crystalline in structure?
Bell Ringer 12/4/15
Explain what determines molecular polarity.
Exit Closing 12/4/15
What effects the geometry of a molecule?
Make a T-chart and list the items below as
“Does” or “Does Not” Effect Geometry
Electronegativity
Number of Bonds
Number of Lone Pairs of Electrons
Boiling Point
Dipole-Dipole Intermolecular Forces
Bell Ringer 12/7/15
Take out your Essay Quizes…
Determine which Essay will be the easiest and
which will be the hardest.
Be prepared to share with your neighbor and
the class.
Exit Closing 12/7/15
Take out your essay quizzes…
Talk to the neighbor next to you about your
Critical Thinking link to life for each question.
We will be looking for volunteers to share cool
ones!
Bell Ringer 12/8/15
We have sugar water, distilled water
and salt water….
Which one(s) should conduct electricity? Be
prepared to explain why it can and the other(s)
can not.
Exit Closing 12/8/15
Why does the water bend when a
charged rod is put near it?
Draw of picture of the rod and water. Label the
charges on the rod and draw a water molecule.
Put the charges on the water molecule as well.
Bell Ringer 12/9/15
Copy the Chart Below into your
Learning Log for Chapter 7
Exit Closing 12/9/15
Name 3 of the 4 examples below:
NaBr
CuCl2
Ca(OH)2
C2H6
Bell Ringer 12/10/15
A student in class says the name of the
compound Cu2SO4 is Copper Sulfide. There are
two reasons this student is incorrect. What
would the compound’s real name be?
Exit Closing 12/10/15
Name the following compounds:
CuCl2
Pb3(PO4)4
What are the formulas for the following
compounds:
Zn(OH)2
Fe2O3
Bell Ringer 12-11-15
Assign oxidation numbers to each of the atoms
in the following compounds:
UF6
H2SO4
ClO3-
Exit Closing 12-11-15
What is the mass in grams of
3.25 mol Fe2(SO4)3?
Bell Ringer 12-14-15
If you have 42.0 grams of C6H12O6 and the molar
mass is 180 grams/mol…
1) Convert grams into moles
2) Convert moles to molecules
3) Determine the mass in grams of just Carbon
Exit Closing 12-14-15
Reflect on you bell ringer from today…
Evaluate sugar to determine the mass by
percentage for oxygen.
Bell Ringer 12-15-15
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 #
HC or GC 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 Continued 12-15-15
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:
Procedure: (check for variables)
Safety:
Bell Ringer 12-16-15
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 12-17-15
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
BR 12-17-15 Continued
Additional Questions
1) What is a precipitant and a decant?
2) Half point each…Name the following reagents used in
this lab (5 points)
(NH4)2CO3
NH3
NH4Cl
Na2PO4
(NH4)3C2O4
HOAC
K2CrO4
BaCl2
MgCl2
CaCl2
Bell Ringer 12-18-15
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
BR 12-18-15 Continued
Additional Questions
1) What is a precipitant and a decant?
2) Half point each…Name the following reagents used in
this lab (5 points)
(NH4)2CO3
NH3
NH4Cl
Na2PO4
(NH4)3C2O4
HOAC
K2CrO4
BaCl2
MgCl2
CaCl2
Bell Ringer 1-4-16
Find the empirical formula of a compound that
contains 53.70% Iron and 46.30% Sulfur.
Exit Closing 1-4-16
Analysis of a compound indicates that it
contains 1.04 g K, 0.70 g Cr, and 0.86 g O. Find
its empirical formula.
Bell Ringer 1/5/15
Chapter 6 & 7 Exam
Pick up your remote from the CPS bag. Be sure
that it is YOUR number.
You may use: Scratch paper and a Calculator.
No Cell Phones!
Bell Ringer 1-6-16
Write and balance the following chemical
equation:
sodium oxide and water yield sodium hydroxide
Exit Closing 1-6-16
Review the activity series Table on page 286.
Determine if a reaction will occur. Remember
the higher it is on the activation series, the more
“power” it has to steal another metal’s position.
Cd (s) + Pb(NO3)2 (aq)  ?
Cu (s) + HCl (aq)  ?
Bell Ringer 1-7-16
Balance the following equations:
H2 + Cl2  HCl
KClO3  KCl + O2
KI + Br2  KBr + I2
AgNO3 + NaCl  AgCl + NaNO3
Exit Closing 1-7-16
Sketch a symbol (no letters or numbers) to
represent the following 5 reactions:
Synthesis
Decomposition
Single Displacement
Double Displacement
Combustion
Bell Ringer 1-8-16
Complete the following reaction, balance it, and
describe which of the 5 types of reactions it falls
under…
C3H8 + O2 
Exit Closing 1-8-16
Classify each of the following reactions as synthesis,
decomposition, single displacement, double displacement or
combustion:
H2 + Cl2  HCl
KClO3  KCl + O2
KI + Br2  KBr + I2
C6H14 + O2 CO2 + H2O
AgNO3 + NaCl  AgCl + NaNO3
Bell Ringer 1-11-16
Based on the reactivity series, predict whether
each of the following possible reactions will
occur:
Ni + H2O 
Br2 + KI 
Au + HCl 
Cd + HCl 
Mg + Co(NO3)2 
Exit Closing 1-11-16
I want to make some cookies and have 9 cups of
flour and 3 cups of sugar. My recipe tells me that
I need 4 cups of flour and
2 cups of sugar for every batch.
How many batches can I make. Which ingredient
will I run out of first…
stopping me from baking more?
Bell Ringer 1-12-16
Write the mole ratios for the equations below:
Teacher Example
2HgO  2Hg + O2
Your Turn
4NH3 + 6NO  5N2 + 6H2O
Exit Closing 1-12-16
Use the equation below (balance it first):
If I have 7 moles of HF, how many moles of H2
can be produced?
Sn (s) + HF (g)  SnF2 (s) + H2 (g)
Bell Ringer 1-13-16
In photosynthesis, plants use energy from the
sun to make glucose (C6H12O6) and Oxygen from
Carbon Dioxide and Water. What mass (in
grams) of glucose is produced when 5.00 moles
of water reacts with Carbon Dioxide?
Hint: Write equation, balance and then use
relationship to determine the moles produced.
Last, convert moles to grams.
Exit Closing 1-13-16
Balance the following equation. Then, given the
moles of reactant or product below, determine
the corresponding amount in moles of each of
the other reactants and products.
NH3 + O2  N2 + H2O
• 4 moles of NH3
• 4 moles of N2
• 4.5 moles of O2
Bell Ringer 1-14-16
Metallic Magnesium reacts with steam to
produce magnesium hydroxide
and hydrogen gas.
If 16.2 g Mg are heated with 12.0 g H2O, what is
the limiting reagent?
Exit Closing 1-14-16
Carbon disulfide burns in oxygen to yield carbon
dioxide and sulfur dioxide:
CS2 + 3O2  CO2 + 2SO2
a) If 1.00 mol CS2 reacts with 1.00 mol O2,
which is the limiting reagent?
b) How many moles of excess reactant remains?
c) How many moles of each product are
formed?
Bell Ringer 1-15-16 Review Flashback!
The melting point of pure benzoic acid is 122°C. Data
obtained by four students in a laboratory experiment are
shown. Which student’s data are precise but not accurate?
Student A
115°C
Student B
119°C
Student C
122°C
Student D
118°C
112°C
118°C
121°C
120°C
118°C
119°C
122°C
124°C
116°C
120°C
121°C
126°C
A) Student A
B) Student B
C) Student C
D) Student D
Exit Closing 1-15-16 Review
Flashback!
Which conversions below are correct?
560,000 = 5.6 x105
33,400 = 3.34 x104
0.0004120 = 4.120 x104
Bell Ringer 1-19-16 Review Flashback!
Complete the following conversions:
10.5 g = _____ kg
1.57 km = _____ m
3.54 g = _____ g
3.5 mol = _____ mol
1.2 L = _____ ml
358 cm3 = _____ m3
548.6 ml = _____ cm3
Exit Closing 1-19-16 Review
Flashback!
Which of the following would have the largest
amount of moles. Be ready to share.
12.15 g Mg
1.50 x1023 atoms F
Final Exam Jan 20 & 21
Pick up your remote from the CPS bag. Be sure
that it is YOUR number.
You may use: Scratch paper and a Calculator.
No Cell Phones!
Bell Ringer 1-22-16
What does theoretical mean? Write a sentence
using the word in every day language (not
necessarily science).
Exit Closing 1-22-16
Compare and contrast theoretical yield vs actual
yield.
Bell Ringer 1-25-16
Take out your Take Home Essay Quiz Questions…
Let’s review terms and highlights that you
should have included in your quiz
for Questions 1-3
Exit Closing 1-25-16
Take out your Take Home Essay Quiz Questions…
Let’s review terms and highlights that you
should have included in your quiz
for Questions 4-6
Bell Ringer 1-26-16
Chlorobenzene (C6H5Cl) is used in aspirin
production. You start with 36.8 grams of C6H6
and an excess of Cl2 to produce 38.8 grams of
C6H5Cl. What is the % yield of C6H5Cl produced?
C6H6 + Cl2  C6H5Cl + HCl
Exit Closing 1-26-16
Turn back to today’s BR. Review the process for
finding % yield. Tell your neighbor the step you
think most people are going to make a mistake
on. Be prepared to share.
Bell Ringer 1-27-16
Exam 8 & 9
Pick up your remote from the CPS bag. Be sure
that it is YOUR number.
You may use: Scratch paper and a Calculator.
No Cell Phones!