Website of the Week
www.chemskillbuilder.com
Complete registration form and start your learning on basic chemistry.
Extra credit will be given to those who register by Feb. 10 and complete one assignment.
Friday, January 30, 2009
January 30. 2009
1. FanTAKStic Friday
LOST Island
Defining community relationships.
2. Quiz on Monday on relationships.
LOST Island
Defining community relationships.
2. Quiz on Monday on relationships.
Thursday, January 29, 2009
January 29, 2009
1. Bellringer
Calculate the number of grams of NaCl produced as a result of 62.4 gram of sodium reacting with chlorine. The balance equation is :
Na + Cl ---> NaCl
2. Molar calculations
3. Homework - Chapter 9, pg 262 #33-40.
What is the secret word this week?
Calculate the number of grams of NaCl produced as a result of 62.4 gram of sodium reacting with chlorine. The balance equation is :
Na + Cl ---> NaCl
2. Molar calculations
3. Homework - Chapter 9, pg 262 #33-40.
What is the secret word this week?
Tuesday, January 27, 2009
January 27, 2009
1. Bellringer
Calculate the number of grams of NH3 produced by the reaction of 5.40 grams of hydrogen with an excess of hydrogen. The balanced equation is
N2 (g) + 3H2 (g) ----> 2NH3 (g)
2. Molar Calculations
3. Homework -Chapter 9, P. 262 #33-40 (concept practice)
Calculate the number of grams of NH3 produced by the reaction of 5.40 grams of hydrogen with an excess of hydrogen. The balanced equation is
N2 (g) + 3H2 (g) ----> 2NH3 (g)
2. Molar Calculations
3. Homework -Chapter 9, P. 262 #33-40 (concept practice)
Monday, January 26, 2009
January 26. 2009
Secret Words of the Week
P1 Homogeneous
P3 Hetergeneous
P4 Solution
P6 Solvent
P7 Solute
P1 Homogeneous
P3 Hetergeneous
P4 Solution
P6 Solvent
P7 Solute
January 26. 2009
1. Bellringer
In the Costa Rican jungle, a species of ants live in a complex relationship with the acacia tree. the ants find shelter in the hollow thorns of the plant. They attack any animal that tries to feed on the tree. In return, the plant provides them with nutrition.
What type of relationship describes the ant and the acacia tree?
2. Quiz, Chapter 9 Terms
3. FanTAKStic - More terms
Parasistism
Predation
Commensalism
Mutualism
In the Costa Rican jungle, a species of ants live in a complex relationship with the acacia tree. the ants find shelter in the hollow thorns of the plant. They attack any animal that tries to feed on the tree. In return, the plant provides them with nutrition.
What type of relationship describes the ant and the acacia tree?
2. Quiz, Chapter 9 Terms
3. FanTAKStic - More terms
Parasistism
Predation
Commensalism
Mutualism
Friday, January 23, 2009
January 23, 2009
What is your class secret word this week?
"Before you say you can't or won't think to yourself, I can and I will."
"Before you say you can't or won't think to yourself, I can and I will."
Thursday, January 22, 2009
January 23, 2009
1. Bell Ringer
When 84.8 grams of iron (III) oxide reacts with an excess of carbon monoxide, 54.3 grams of iron is produced.
a. Write the equation for the reaction.
b. Balance the equation.
c. Calculate the mass of reactants and products.
d. Calculate the percent yield of this reaction.
2. All students will complete pages 81-85 (Sec 9.1-9.2) of AW Chemistry Workbook (found in the back glass cabinet). Turn in their work at the end of class in their period box.
3. Homework – Read all of Chapter 9.
Quiz on terms Monday.
Turn in any secret words to the substitute.
When 84.8 grams of iron (III) oxide reacts with an excess of carbon monoxide, 54.3 grams of iron is produced.
a. Write the equation for the reaction.
b. Balance the equation.
c. Calculate the mass of reactants and products.
d. Calculate the percent yield of this reaction.
2. All students will complete pages 81-85 (Sec 9.1-9.2) of AW Chemistry Workbook (found in the back glass cabinet). Turn in their work at the end of class in their period box.
3. Homework – Read all of Chapter 9.
Quiz on terms Monday.
Turn in any secret words to the substitute.
January 22, 2009
1. Bell Ringer
When 84.8 grams of iron (III) oxide reacts with an excess of carbon monoxide, 54.3 grams of iron is produced.
a. Write the equation for the reaction.
b. Balance the equation.
c. Calculate the mass of reactants and products.
d. Calculate the percent yield of this reaction.
2. All students will complete pages 81-85 (Sec 9.1-9.2) of AW Chemistry Workbook (found in the back glass cabinet). Turn in their work at the end of class in their period box.
3. Homework – Read all of Chapter 9.
Quiz on terms Monday.
Turn in any secret words to the substitute.
When 84.8 grams of iron (III) oxide reacts with an excess of carbon monoxide, 54.3 grams of iron is produced.
a. Write the equation for the reaction.
b. Balance the equation.
c. Calculate the mass of reactants and products.
d. Calculate the percent yield of this reaction.
2. All students will complete pages 81-85 (Sec 9.1-9.2) of AW Chemistry Workbook (found in the back glass cabinet). Turn in their work at the end of class in their period box.
3. Homework – Read all of Chapter 9.
Quiz on terms Monday.
Turn in any secret words to the substitute.
January 22, 2009
1. Bellringer
2. FanTAKStic Quiz
3. Lab Demo - Elephant Toothpaste
(see recipe below)
4. Homework - Find the secret word for your class period in the blog.
Elephant Toothpaste
Materials
16 oz. empty plastic soda bottle (preferably with a narrow neck such as those made by Coca-Cola)
1/2 cup 20-volume hydrogen peroxide (20-volume is 6% solution, purchased from a beauty supply store)
Squirt of Dawn dish detergent
3-4 drops of food coloring
1 teaspoon yeast dissolved in ~2 tablespoons very warm water
Funnel
Foil cake pan with 2-inch sides
Lab goggles
Lab smock
1. At each student's place: cake pan, plastic bottle, Dawn in small cup, food coloring, funnel, goggles and smock, 1/2 cup peroxide, dissolved yeast mixture. 2. Stand up bottle in the center of the cake pan. Put funnel in opening. Add 3-4 drops of food coloring to the peroxide and pour the peroxide through the funnel into the bottle. Show a water molecule diagram and a peroxide molecule diagram, pointing to the extra oxygen that will be set free. 3. Add the Dawn detergent to the peroxide in the bottle. 4. Pour the yeast mixture into the bottle and quickly remove the funnel. 5. The students can touch the bottle to feel any changes that take place.
Observations
The reaction creates foam that shoots up out of the bottle and pools in the pan. After a minute or so, it begins to come out in a moving stream that looks like toothpaste being squeezed our of a tube. The students can play with the foam as it is just soap and water with oxygen bubbles. The bottle will feel warm to the touch as this is an exothermic reaction.
How does it work?
Talk about the addition of the yeast as a catalyst which makes the peroxide molecule release the oxygen atom faster.
2. FanTAKStic Quiz
3. Lab Demo - Elephant Toothpaste
(see recipe below)
4. Homework - Find the secret word for your class period in the blog.
Elephant Toothpaste
Materials
16 oz. empty plastic soda bottle (preferably with a narrow neck such as those made by Coca-Cola)
1/2 cup 20-volume hydrogen peroxide (20-volume is 6% solution, purchased from a beauty supply store)
Squirt of Dawn dish detergent
3-4 drops of food coloring
1 teaspoon yeast dissolved in ~2 tablespoons very warm water
Funnel
Foil cake pan with 2-inch sides
Lab goggles
Lab smock
1. At each student's place: cake pan, plastic bottle, Dawn in small cup, food coloring, funnel, goggles and smock, 1/2 cup peroxide, dissolved yeast mixture. 2. Stand up bottle in the center of the cake pan. Put funnel in opening. Add 3-4 drops of food coloring to the peroxide and pour the peroxide through the funnel into the bottle. Show a water molecule diagram and a peroxide molecule diagram, pointing to the extra oxygen that will be set free. 3. Add the Dawn detergent to the peroxide in the bottle. 4. Pour the yeast mixture into the bottle and quickly remove the funnel. 5. The students can touch the bottle to feel any changes that take place.
Observations
The reaction creates foam that shoots up out of the bottle and pools in the pan. After a minute or so, it begins to come out in a moving stream that looks like toothpaste being squeezed our of a tube. The students can play with the foam as it is just soap and water with oxygen bubbles. The bottle will feel warm to the touch as this is an exothermic reaction.
How does it work?
Talk about the addition of the yeast as a catalyst which makes the peroxide molecule release the oxygen atom faster.
Wednesday, January 21, 2009
January 21, 2009
1. Bellringer
28 grams of sodium reacted with 36 grams of chlorine to produce 62 grams of salt with 2 grams of excess. What is the actual yield and percent yield of salt?
2. Stoichiometry
28 grams of sodium reacted with 36 grams of chlorine to produce 62 grams of salt with 2 grams of excess. What is the actual yield and percent yield of salt?
2. Stoichiometry
Tuesday, January 20, 2009
New Class Rules
Classroom Rules
1. No more electric devices! This means cell phones, IPods, DSD and hair irons.
I do not even want to see ear buds or head sets.
2. No food or drink. Classroom sinks are being clogged with candy wrappers and trash is being left in the sinks without you taking the responsibility to dispose of it.
Attendance Policy
1. If you are tardy, you must sign the Tardy Log. Here’s a breakdown of weekly tardy consequences:
a. 1 tardy = 15 lunch detention
b. 2 tardies = 30 minute lunch detention
c. 3 tardies = 1 hr classroom service
If you do not show up for detention, then you will receive an infraction.
Learning Incentives
1. If you do not have any tardies or absences during the six weeks, you will earn lunch on me.
2. Each week, there will be a secret word on http://scienceenstein.blogspot.com. If you check the blog, retrieve the secret and turn it in to me, you will earn a free homework pass. At the end of the six weeks, for each correct secret word you have correct, you earn one free entry to a drawing for 5 points added to your final grade or lunch with me.
Student Commitment
I commit to following the classroom rules.
I commit to being on time.
I commit to paying attention in class.
I commit to turning in my assignments when they are due.
I commit to respecting my teacher and classmates.
1. No more electric devices! This means cell phones, IPods, DSD and hair irons.
I do not even want to see ear buds or head sets.
2. No food or drink. Classroom sinks are being clogged with candy wrappers and trash is being left in the sinks without you taking the responsibility to dispose of it.
Attendance Policy
1. If you are tardy, you must sign the Tardy Log. Here’s a breakdown of weekly tardy consequences:
a. 1 tardy = 15 lunch detention
b. 2 tardies = 30 minute lunch detention
c. 3 tardies = 1 hr classroom service
If you do not show up for detention, then you will receive an infraction.
Learning Incentives
1. If you do not have any tardies or absences during the six weeks, you will earn lunch on me.
2. Each week, there will be a secret word on http://scienceenstein.blogspot.com. If you check the blog, retrieve the secret and turn it in to me, you will earn a free homework pass. At the end of the six weeks, for each correct secret word you have correct, you earn one free entry to a drawing for 5 points added to your final grade or lunch with me.
Student Commitment
I commit to following the classroom rules.
I commit to being on time.
I commit to paying attention in class.
I commit to turning in my assignments when they are due.
I commit to respecting my teacher and classmates.
January 20, 2009
Vocabulary
Avogrado's number
Mole
Molarity
Molecule
Percent Yield
Actual Yield
Stoichiometry
Avogrado's number
Mole
Molarity
Molecule
Percent Yield
Actual Yield
Stoichiometry
January 20, 2009
1. Bellringer
2. Journal entry #10 What technological advance has made a positive impact on science?
3. Inaugural viewing
4. Homework - Chapter 9 terms
2. Journal entry #10 What technological advance has made a positive impact on science?
3. Inaugural viewing
4. Homework - Chapter 9 terms
Friday, January 16, 2009
January 16, 2009
Waiver Day - NO STUDENTS!
January 19, 2009 Martin Luther King, Jr. Holiday - NO SCHOOL!
January 19, 2009 Martin Luther King, Jr. Holiday - NO SCHOOL!
January 16, 2009
Waiver Day - NO STUDENTS!
January 19, 2009 Martin Luther King, Jr. Holiday - NO SCHOOL!
January 19, 2009 Martin Luther King, Jr. Holiday - NO SCHOOL!
Thursday, January 15, 2009
January 14-15, 2009
Jan 14, 2009
Period 1 Review
Period 3 Final
Period 4 Review
Period 7 Final
Jan 15, 2009
Period 1 Final
Period 4 Final
Dismissal at 12:15pm
Period 1 Review
Period 3 Final
Period 4 Review
Period 7 Final
Jan 15, 2009
Period 1 Final
Period 4 Final
Dismissal at 12:15pm
Tuesday, January 13, 2009
Monday, January 12, 2009
Finals Review
First Semester 2008-2009 Chemistry Finals Review
Lab Safety
Scientific Method
Reading Graphs and Charts
Measurements (English System)
Metric Conversions and Significant Figures
States of Matter
Properties of Matter
Atomic Structure
Substances and Mixtures
Physical and Chemical Properties
Period Table of Elements
Trends of the Periodic Table
Molecular Structure
Lewis Dot Structure
Aufbau Principle
Molecular Formula
Naming Compounds
Ionic and Covalent Bonds
Conservation of Mass
Balancing Equations
Lab Safety
Scientific Method
Reading Graphs and Charts
Measurements (English System)
Metric Conversions and Significant Figures
States of Matter
Properties of Matter
Atomic Structure
Substances and Mixtures
Physical and Chemical Properties
Period Table of Elements
Trends of the Periodic Table
Molecular Structure
Lewis Dot Structure
Aufbau Principle
Molecular Formula
Naming Compounds
Ionic and Covalent Bonds
Conservation of Mass
Balancing Equations
Friday, January 9, 2009
FanTAKStic Friday
1. Six Weeks Exam
2. TAKS Activity
Cellular Processes
Have a great weekend and get rested for finals week!
2. TAKS Activity
Cellular Processes
Have a great weekend and get rested for finals week!
Thursday, January 8, 2009
Final Exemption Policy
FINAL EXEMPTION POLICY
2008-2009
A student may be granted an exemption from taking final examination in any semester if the student:
1. Has a minimum passing grade of 80%.
2. Has no more than three (3) absences excused or unexcused in the semester in which the exemption is requested. For exemption purposes three (3) instances of tardy will equal one absence.
3. Has not been assigned to an alternative program or been suspended from school during the semester.
A teacher must approve the completion of this form in accordance with the above policies.
An eligible student must determine whether or not he or she is satisfied with his or her class rank and grade average before making the request for exemption from a final exam. If the student qualifies for the exemption, it is the student’s option to take the test for the class. If the student elects to take the final examination, the examination grade shall be used to calculate the student’s final grade for the semester only if the examination grade improves the final average.
Students who receive an exemption will not be required to attend that class on the day of the test. Buses will operate on their regular schedule; therefore, students leaving campus early must provide their own transportation. Students will be dismissed early on Thursday, January 15th. Busses will depart campus at 12:35pm.
If more information is needed regarding the exemption for this class, please contact me via e-mail at hao.tran@fwisd.org or by phone at 817-903-0231.
FAILURE TO RETURN THIS SIGNED FORM TO YOUR TEACHER WILL RESULT IN DENIAL OF THE EXEMPTION. (NO FORM = NO EXEMPTION)
2008-2009
A student may be granted an exemption from taking final examination in any semester if the student:
1. Has a minimum passing grade of 80%.
2. Has no more than three (3) absences excused or unexcused in the semester in which the exemption is requested. For exemption purposes three (3) instances of tardy will equal one absence.
3. Has not been assigned to an alternative program or been suspended from school during the semester.
A teacher must approve the completion of this form in accordance with the above policies.
An eligible student must determine whether or not he or she is satisfied with his or her class rank and grade average before making the request for exemption from a final exam. If the student qualifies for the exemption, it is the student’s option to take the test for the class. If the student elects to take the final examination, the examination grade shall be used to calculate the student’s final grade for the semester only if the examination grade improves the final average.
Students who receive an exemption will not be required to attend that class on the day of the test. Buses will operate on their regular schedule; therefore, students leaving campus early must provide their own transportation. Students will be dismissed early on Thursday, January 15th. Busses will depart campus at 12:35pm.
If more information is needed regarding the exemption for this class, please contact me via e-mail at hao.tran@fwisd.org or by phone at 817-903-0231.
FAILURE TO RETURN THIS SIGNED FORM TO YOUR TEACHER WILL RESULT IN DENIAL OF THE EXEMPTION. (NO FORM = NO EXEMPTION)
January 8, 2009
1. Bellringer
Balance the following equation:
____Ca + _____ H2O --> _____ Ca(OH)2 + _____ H2
2. Complete the lab.
3. Six Weeks Test Review
4. Homework - Study for Six Weeks Test
Review Sheet
Conserving Matter
Law of conservation of matter
Chemical equation
Chemical formula
Reactants
Products
Coefficient
Subscript
Formula unit
Balancing chemical equations
Practice Balancing Equations:
1. _____ Fe + _____ S --> _____ FeS
2. _____ H2 + _____ Cl2 --> _____ HCl
3. _____ Mg + _____ O2 --> _____ MgO
4. _____ O2 + _____ H2 --> _____ H2O
5. _____ HgO --> _____ Hg + _____ O2
6. _____ Ca + _____ H2O --> _____ Ca(OH)2 + _____ H2
7. _____ CH4 + _____ O2 --> _____ CO2 + _____ H20
8. _____ Na2O2 + _____ H2SO4 --> _____ Na2SO4 + _____ H2O2
9. _____ N2 + _____ H2 --> _____ NH3
10. _____ Al + _____ O2 --> _____ Al2O3
11. _____ KMnO4 --> _____ K2O + _____ MnO + _____ O2
12. _____ Na + _____ H2O --> _____ NaOH + _____ H2
13. _____ H2SO4 + _____ NaOH --> Na2SO4 + _____ H2O
Extra Credit
Essay:
Benjamin Franklin said “Necessity is the Mother of invention.” Chemists create materials for a necessity. Some materials that are chemically created include ceramics and plastics. Discuss the physical and chemical properties of each and the advantages and disadvantages of such products.
Balance the following equation:
____Ca + _____ H2O --> _____ Ca(OH)2 + _____ H2
2. Complete the lab.
3. Six Weeks Test Review
4. Homework - Study for Six Weeks Test
Review Sheet
Conserving Matter
Law of conservation of matter
Chemical equation
Chemical formula
Reactants
Products
Coefficient
Subscript
Formula unit
Balancing chemical equations
Practice Balancing Equations:
1. _____ Fe + _____ S --> _____ FeS
2. _____ H2 + _____ Cl2 --> _____ HCl
3. _____ Mg + _____ O2 --> _____ MgO
4. _____ O2 + _____ H2 --> _____ H2O
5. _____ HgO --> _____ Hg + _____ O2
6. _____ Ca + _____ H2O --> _____ Ca(OH)2 + _____ H2
7. _____ CH4 + _____ O2 --> _____ CO2 + _____ H20
8. _____ Na2O2 + _____ H2SO4 --> _____ Na2SO4 + _____ H2O2
9. _____ N2 + _____ H2 --> _____ NH3
10. _____ Al + _____ O2 --> _____ Al2O3
11. _____ KMnO4 --> _____ K2O + _____ MnO + _____ O2
12. _____ Na + _____ H2O --> _____ NaOH + _____ H2
13. _____ H2SO4 + _____ NaOH --> Na2SO4 + _____ H2O
Extra Credit
Essay:
Benjamin Franklin said “Necessity is the Mother of invention.” Chemists create materials for a necessity. Some materials that are chemically created include ceramics and plastics. Discuss the physical and chemical properties of each and the advantages and disadvantages of such products.
Wednesday, January 7, 2009
January 7, 2009
1. Bell Ringer
Solve for X
N2 + XH2 ---> 2NH3
2. Team Lab
Homework, Practice #2
1. C10H16 + Cl2 ---> C + HCl
2. CO2 + NH3 ---> OC(NH2)2 + H2O
3. Si2H3 + O2 ---> SiO2 + H2O
4. Al(OH)3 + H2SO4 ---> Al2(SO4)3 + H2O5. Fe + O2 ---> Fe2O3
Solve for X
N2 + XH2 ---> 2NH3
2. Team Lab
Homework, Practice #2
1. C10H16 + Cl2 ---> C + HCl
2. CO2 + NH3 ---> OC(NH2)2 + H2O
3. Si2H3 + O2 ---> SiO2 + H2O
4. Al(OH)3 + H2SO4 ---> Al2(SO4)3 + H2O5. Fe + O2 ---> Fe2O3
Tuesday, January 6, 2009
January 6, 2009
1. Bell Ringer
The Law of Conservation of Mass states that:
a. Matter can be created
b. Matter can be destroyed
c. Matter can be rearranged
d. Molecular weight does not have to be equal
2. Balancing equations…practice
3. Announcements
Blog, Crime Stoppers, Book Check, End of Semester
The Law of Conservation of Mass states that:
a. Matter can be created
b. Matter can be destroyed
c. Matter can be rearranged
d. Molecular weight does not have to be equal
2. Balancing equations…practice
3. Announcements
Blog, Crime Stoppers, Book Check, End of Semester
Saturday, January 3, 2009
Welcome Students!
Welcome to Ms. Tran's science blog! It is my hope that I can share my interests with you and empower you to explore the wonderful world of science. You can also use this venue to share your educational experience, ask questions, or get updates on classroom activities and assignments. It is an inclusive environment and I ask that we respect all views.
If you would like to be a blogger at this site, e-mail myscienceclass@yahoo.com and I will add you to the blog.
To read the blog, go to
http://scienceeinstein.blogspot.com
If you would like to be a blogger at this site, e-mail myscienceclass@yahoo.com and I will add you to the blog.
To read the blog, go to
http://scienceeinstein.blogspot.com
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