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.

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