Saturday, December 20, 2008

Semester Two Outline-Chemical Reactions

This is a tentative outline of the concepts and activities that will be covered in the second semester:
Conversion Quizzes throughout. Equations, Reactions, Stoichiometry, Thermochemistry, Gas Laws, Water and Aqueous Solutions.

First Two Weeks
WR:
Goal: Students will be able to balance chemical equations. (given the skeleton equation)
1.) Engage: Making a pizza as a chemical reaction. Reactants and Products. (skeleton vs. balanced)
2.) Coach and Model how to balance chemical equations. Do 6 examples with the class.
-Use gizmo to show meaning of coefficients and how to balance equations.
3.) Fade...Chemical Equation balancing race. (using online worksheet). Complete and Check 5 equations at a time, or check at the end: Student choice.
Assessment: the balanced equations from #3.
Homework: Get mileage from your family's cars.

FM:
Activity: Given a list of chemical reactions written as either skeleton or balanced, students classify the reactions based on equations and observations.
1.) Students take their balanced equations from the class before and cut them out so they can categorize those equations as they see fit.
2.) Read 11.2 as a class. Students change the categorization of their reactions.
Quiz Next Class: Balance and classify the following equations based on simulations.
3.) NI3--> N2+I2 (metacafe)
4.) Fe2O3 (s) + 2Al(s) → Al2O3(s)+ 2Fe(l) (Potassium Chlorate and Sugar and Acid) (delicious website)
5.) Al + Br2--> AlBr3
6.) Electrolysis of Water
7.) Baking Soda (Sodium Hydrogen Carbonate) and Vinegar.
Other Reactions from delicious.com/jgensic


TW: Goal: Students start combustion of fossil fuels project by analyzing the materials in gasoline.
Homework get new mileage from families cars.
1.) Quiz: Given reactants and products, students balance and classify chemical reactions.
2.) Lecture: Combustion energy diagrams. Exothermic vs. Endothermic. Combustion reactants and products.
3.) Reading how gasoline works. Start reading article in class-finish at home (with 30 minutes left in class)
4.) Complete what's in gasoline sheet.
5.) Homework: Record your family's mileage on the car. (exactly one week later)
http://upload.wikimedia.org/wikipedia/commons/thumb/9/91/Ac_com.svg/300px-Ac_com.svg.png

RF: Goal: Students make calculations about the amount of gasoline and oxygen used. Determine energy, carbon dioxide, water produced by their cars.
1.) Find the total number of miles driven.
2.) Find the number of gallons used. How much CO2 was produced? How much plant matter was once living? How many calories were released?
3.) Find the number of moles of octane and heptane burned. Gallons of gas to gallons of octane (87% octane) and heptane to liters to mass using density to moles using molar mass.
4.) Examine the combustion equations of octane and heptane.
5.) How many moles of oxygen were burned, CO2 produced?, water produced?
6.) Record this for your family then record other groups as well.

Sunday, December 7, 2008

Monday:
Goal: Determine the formula, molar mass, melting point, boiling point, and double bonds for a variety of food ingredients.
1.) Quick review, percent composition.
2.) Coach, Model, Fade= Percent Composition to Empirical Formula.
3.) Food Project Start.

Tuesday and Wednesday:
Determine the Empirical Formula of a Compound from a Percent Composition.
1.) Quick review, percent composition.
2.) Coach, Model, Fade= Percent Composition to Empirical Formula.
3.) Food Project: Continue (Special Research: two compounds that are the most intriguing to you)
Type two paragraphs: One about each compound. In each paragraph answer the following questions.
What food is this compound found in?
Why is it in that food (what function does it serve in the food perservative/flavor enhancer/coloring)?
Are there any known side effects (on humans/mice/rats)?
Are their any studies about this chemical on humans?
Will you continue to eat this food? Why or why not?
4.) FInish VSPER Lab.
5.) Orally present to the class the following period.

Thursday and Friday:
Goal: Make percentage composition and mole calculations using lab samples.
Introduce activity:
1.) Go from table to table measuring samples for their mass. For each sample:
Determine the percent composition of the compound.
Determine the number of grams of each element present in the sample.
Determine the number of moles
2.) Computer Lab: Periodic Trends Spreadsheet?
3.) Presentation of food project.
4.) Finish VSEPR?

Monday and Tuesday:
Goal: Review for final exam.
1.) Vocabulary and Concept mapping of key concepts.
2.) Model how activity works.
3.) Complete activity.

Wednesday:
Review for final

Thursday and Friday:
Final Exam

Tuesday, November 11, 2008

Linking Covalent Molecules to Percent Mass Calculations

Monday and Tuesday:
Goal: Students convert between grams, particles, moles and volumes of gases at STP.
Quick Review
1.) Coach and Model solving problems using the mole road map.
2.) Students practice making calculations using the mole road map.
3.) Pyramid when everyone is done.
4.) Chapter 10 vocabulary quiz next period.
Assessment: Problem Solving Handout.

Wednesday and Monday:
Goal: Students complete a grid to practice converting between grams, particles, moles and volumes of gases at STP.
Quick Review: Mole Calculations
1.) Students use last class periods wksht and mole map to complete a grid that shows moles, particles, mass, and volumes. Maybe save until after Thanksgiving.
Goal: Review Shapes of Covalent Bonds, make percent mass calculations using covalent molecule models.
2.) Review shapes of covalent molecules using VSEPR
3.) Complete Lab using Gum Drops as Models of different covalent molecules.
Assessment: Molecules Created, and handout completed

Tuesday and Wednesday:
Goal: Students determine the percentage by mass of elements in ionic and covalent compounds.
Quick Review: Naming
1.) Mole Review Calculation Grid
2.) Mole Quiz-Finish VSEPR Lab
3.) Do football to frisbee ratio comparison demonstration: In number the ratio is one to one, However, in mass the ratio is quite different. How do you calculate percentages? For example if a football weighs 600 grams and a frisbee weighs 300 grams, how do you find the % that the frisbee makes up and the % that the football makes up? Is it 50% to 50%? Why? Why not?
4.) Show how to find the percent using the frisbee and the football. part/whole*100.
5.) Now students use their sheets over covalent bonds to find the percentage of each chemical in each compound, model the first problem.
Assessment: Hand two of those problems in on a half sheet of paper.

Thursday and Friday:
Goal: Review Chapter 10, make mole and percent mass calculations.
Quick Conversion Quiz
1.) Complete review problems over chapter 10.
2.) Go over test Concepts (Mole Calculations, Mass Percentages, VSEPR Shapes)
3.) Pyramid Review

Monday and Tuesday:
Chapter Ten Test with Covalent Molecule Structures
1.) Test over Chapter Ten
2.) Project Start: Favorite Processed Food, start looking up structures, names, formulas, melting point, boiling point, and molar masses for each ingredient.

Wednesday, November 5, 2008

Chapter Ten: The Mole?




Chapter 10 Plans over the mole:
Monday and Tuesday:
Goal: Students describe what a mole is in chemistry and determine the number of grams in a mole of a substance.
1.) Quick Conversion Quiz
-Review Diatomic Molecules
2.) Naming Retest
3.) Go over numbering units For Example Analogy Example (dozen:12 as a mole: 6.02x10^23)
-Interesting Fact: a mole of an element is equal to the atomic weight in grams.
4.) Practice calculating the number of grams in a mole of a substance.
5.) Done? Pyramid Review.

Wednesday and Thursday:
Goal: students will be able to determine the number of moles in a sample and calculate the number of atoms in a sample.
1.) Conversion Quiz/Naming Review (Thursday: practice calculating the number of grams in a mole of a substance.)
2.) Practice Mole-Mass Conversions.
3.) Have students create a table with the following (landscape: Name, Formula, Molecular Mass Calculation, mass-number of moles, and number of atoms)
5.) Pyramid Review when done.
Assessment: Calculations.

Friday Monday:
Friday work on reviewing naming Jeopardy and molar calculations as Millionaire.
Monday: Catch up on molar calculation activities.

Tuesday and Wednesday:
Goal: students measure, calculate, and sketch 0.5, 1.0, 2.0 and 3.0 moles of a variety of substances.
1.) Review Problems
2.) Measuring different moles of three different substances lab.
3.) Pyramid

Thursday and Friday
Goal: make calculations of mole conversions (mass, volume at STP, and particles)
1.) Chapter 10 (1-31) Problems. Go over 1-10 at 30 min.

Monday and Tuesday
Quiz: 10.1 and 10.2 Questions.
Gum Drop Project
Goal: students will be able to determine shapes of covalent compounds and calculate molar masses of substances.
1.) Conversion Quiz
2.) Creating the models of covalent compounds using VSEPR Theory on pg. 233.
3.) Calculating the molecular mass of each of the compounds.
4.) Students determine the percent by mass of the compounds they created.

Monday and Tuesday
Goal: Students will be able to complete mole volume conversions with gases.
1.) Naming Practice with molar masses.
2.) Notes 10.2
3.) Practice Volume problems.
4.) Pyramid Review when done.

Friday, October 24, 2008

Nature of Compounds to Naming Compounds, Introduce the Mole

Continue to study those polyatomic ions!!!

Monday and Tuesday
Goal: differentiate between types of bonds, explore relationships between bond energy and bond length.
1.) Ionic, Metallic, Covalent Desk to Desk activity.
2.) Test
3.) Bond Length vs. Energy Graphing exercise. Write down four claims you can make based on the data.

Wednesday and Thursday
Goal: convert between names and formulas of ionic compounds and covalent molecules (including the use of polyatomic ions).
1.) Polyatomic Ion quiz over all the ions.
2.) Practice naming activity-Round Robin, using polyatomic ion chart and partners.
3.) Computer Lab polyatomic ion practice and naming compounds internet games.

Friday and Monday
Goal: convert between names and formulas of ionic compounds and covalent molecules (including the use of polyatomic ions), and write compounds for acids and bases.
1.) Review naming of ionic and covalent compounds ppt.
2.) End of Section 1-19 questions.
3.) Round Robin naming of Acids and Bases.
4.) End of section questions (related to acids and bases)

Tuesday and Wednesday
Goal: Convert between formulas and names of acids, ionic, covalent, and bases.
1.) Quick table completion:
2.) Model how to create Jeopardy powerpoint.
3.) Students create Jeopardy game with specific categories: Ionic, Covalent, Polyatomic Ions, and Acids
Bring in gum drops

Thursday and Friday Convert between names and formulas of a variety of compounds.
1.) Naming Test
-memorize shapes on pg. 233
2.) Conversion Quiz
3.) Pyramid Review

Sunday, October 12, 2008

Covalent, Ionic, and Hydrogen Bonding

Monday and Tuesday:
Goal: Review Ionic Bonding, Test and Explore Covalent Bonding.
1.) Quick Review
2.) Test
3.) Covalent Bonding Webquest
HW: Read Chapter 8 and Vocab.

Wednesday and Thursday:
Goal: describe the nature of covalent bonds and the properties of molecules that are covalently bonded.
1.) How we learn ppt.
2.) Go over Webquest.
3.) Covalent Bonding Grid.
4.) Problems related to covalent bonding from Chap. 8

Friday and Monday
Goal: Students describe the formation of polar bonds.
1.) Review types of bonds and characteristics. Water demonstration.
2.) Bonding ppt.
3.) Ionic, Polar, Nonpolar bonding chart.

Tuesday and Wednesday
Goal: Students analyze the pigments in different leaves and describe the different intermolecular forces involved with surface tension and chromatography.
1.) Review Ionic, Polar, Nonpolar Graphic Organizer
1a.) Polyatomic ion ppt. (with slides, memorize diatomic atoms and polyatomic ions)
2.) Chlorophyll lab (discuss cohesion and adhesion).
3.) Hydrogen Bond notes.
4.) Pyramid?

Thursday and Friday
Goal: Describe hydrogen bonds and the ramifications of hydrogen bonds.
1.) Hydrogen Bond notes. Paperclip contest.
2.) Polyatomic ion and diatomic quiz.
3.) Test Concepts for Chapter 8.
4.) Pyramid?

Monday and Tuesday
Distinguish between ionic, covalent, metallic, and hydrogen bonds.
1.) Ionic, covalent, or metallic classification.
2.) Chapter 8 Test
3.) Bond Length vs. Energy Graphing. Done? Polyatomic Ion Practice online.

Wednesday and Thursday
Name compounds based on formulas
1.) Practice naming compounds exercise.
2.) Bonding Jeopardy?

Friday and Monday
Name compounds based on formulas.
1.) Continue with naming compounds. Quick Quiz.

Thursday, October 2, 2008

Ionic Bonding and Metals

I am working on a Field Trip to IN Tek IN Kote. This will directly relate to metallic bonding, alloys, and applied chemistry. Terms to know for the IN Tek IN Kote Field Trip: annealing, galvanizing, hot-dip galvanizing, spangle, corrosion, electroplating, ductile, oxidation.

Friday and Monday 10/3, 10/6
Goal: Write electron configurations and explain atomic spectra
Electron Configuration Questions, Review of Noble Gas Method
Chapter 5 Quiz
Element or Compound little sheets.

Tuesday And Wednesday 10/7, 10/8
Goal: Describe Ionic Bonds, write ionic formulas, and name ionic compounds.
1.) Cereal activity-Element or Compound
2.) Characteristics of Bonds Graphic Organizer,
3.) Writing Lewis Dot Structures of Atoms and Ions
4.) 1-11 Chapter 7

Thursday and Friday 10/9, 10/10
Goal: Describe metallic bonds and alloys while practicing ionic bonds and names.
1.) Writing Ionic Compounds Activity
2.) 14-29, 61-63 Chapter 7 (in class)
3.) Test Concepts

Monday and Tuesday 10/13, 10/14
1.) Test Chapter 7
2.) Explore Chapter 6 with Covalent Bonding Gizmo.

Wednesday, September 24, 2008

Monday and Tuesday 9/29
Goal: write electron configurations for elements.
1.) Conversion Quiz, Computer Lab Electron Configuration Completions
2.) When done, Investigate the Question: How do s, p, d, and f orbitals look like? Why do scientists think this?

Wednesday and Thursday
Goal: describe the orbitals and energy levels of electrons in atoms.
1.) Read Chapter 5 Section 1.
2.) Chapter 5 powerpoint presentation-Atomic Spectra Observations.
3.) Some practice problems from book, details in class.
4.) Questions #1-21 on Chapter 5
Friday and Monday
Goal: write electron configurations and describe orbital patterns for electrons.
1.) Practice electron configurations.
2.) Work sample problems from book as assigned in class.
3.) Chapter 5 quiz

Tuesday and Wednesday
1.) Chapter 7 vocab, Reading
2.) Chapter 7 exploration activity

Saturday, September 6, 2008

Chemistry Evidence for Atoms Webquest

http://www.chemheritage.org/EducationalServices/webquest/dalton.htm

Follow the above link to complete the "Evidence for Atoms" webquest.
Complete the questions on the sheet provided.