Homework:
- Complete the odd numbered problems on the worksheet below.
Thursday, February 24, 2011
Tuesday, February 22, 2011
Tues., Feb 22, 2011
TEST TODAY - All students who missed the test will be expected to make it up during the after-school test session on Wednesday @ 14:45 in Monticello.
Homework:
Homework:
- Read section 15.1 (p. 501-505). Take notes and answer the section questions.
- Read section 15.2 (p. 506-509). Take notes and answer the "Practice Problems" (#1&2, p.507, #3&4, p.509)
BONUS: Due Friday (2/25)
- Create a poster-sized graphic organizer explaining the material covered on the past test.
- +10% on test for students who create exceptional posters
- +5% on test for students who create posters that cover all the material.
- Here is a link to help you design a graphic organizer
*If you do not have poster board, you can tape together 9 sheets of A4 paper to make a 3x3 matrix.
Sunday, February 20, 2011
Mon., Feb 21, 2011
TEST REVIEW DAY!
- Be able to balance chemical equations
- Be able to write chemical equations from words including all symbols
- Identify reactants and products
- Identify a reaction that will not take place (No Rxn)
- Predict reaction products
- Identify the 4 general reaction types:
- synthesis
- decomposition
- single replacement
- double displacement
- Identify the 4 special reaction types:
- Neutralization
- Precipitation
- Gas Forming
- Combustion
- Identify soluble and insoluble salts
- Identify strong acids and bases
- Write molecular, ionic, and net ionic equations for a reaction
Try these worksheets for extra practice.
Friday, Feb. 18, 2011
NOTE: Monday will be a review for a test on Tuesday / Wednesday
In class:
In class:
- Reviewed predicting reaction products
- Discussed net ionic equations
Wednesday, February 16, 2011
Tues., Feb 15, 2011
In class -
- Reviewed 4 General Reaction Types:
- Synthesis
- Decomposition
- Single Replacement
- Double Displacement
- Reviewed 4 Special Reaction Types:
- Combustion Rxn
- Precipitation Rxn
- Neutralization Rxn
- Gas Forming Rxn
- Writing Chemical Reactions Lab
- Quiz Next Class!
If you were not in the lab, please write the reactions for the following.
Also make sure to write the the type of reaction taking place.
Rxn 1: A solution of silver nitrate reacts with hydrochloric acid to form a white precipitate and cloudy colorless solution.
Rxn 2: When nitric acid is poured into a beaker filled with a solution of sodium hydrogen carbonate, a fountain of bubbles escape from the beaker, leaving only a clear, colorless solution.
Rxn 3: When calcium metal is dropped into a solution of concentrated hydrochloric acid, white smokes rises, leaving a clear, colorless solution.
Rxn 4: (CH3)2CHOH burns oxygen in the air when a match is taken to it.
Rxn 5: A piece of soft, silvery sodium metal is dropped into a beaker of water creating a violent reaction where sparks can be seen as large amounts of vapor escape from the top of the beaker.
Monday, Feb., 14, 2011
In class -
- Reviewed all weekend homework assignments
- Balancing Reactions
- Solubility of Salts
- Predicting Reaction Products
Homework -
- Chapter 9 - p. 303, # 45 - 50
Friday, February 11, 2011
Friday, Feb. 11, 2011
In class:
- Reviewed section 9.3 homework
- Reviewed Balancing Questions from Words WS # 3
- Discussed "Special Reaction Types"
Homework:
- Solubility WS
- Reaction Products WS
- Predicting Reaction Products WS #1
Thursday, February 10, 2011
Wed./Thurs., Feb 9&10, 2011
In class:
Homework:
Homework:
- Read section 9.3 with notes and questions
- Complete Balance Equations WS # 3
Tues., Feb 8, 2011
In class:
- Reviewed section 9.1 HW
- Reviewed writing chemical equations from words
- Played "Snowman Balancing Equations Challenge"
- Balancing Chemical Equations WS 1
Homework
- Read Section 9.3 (Due Friday)
Monday, February 7, 2011
Monday, Feb. 7, 2011
In class:
- Reviewed homework (Section 9.1)
- Began notes on writing and balancing chemical formulas.
Friday, Feb. 4, 2011
In class:
- Reviewed homework
- Quiz - Percent composition, empirical formula, & molecular formula problems.
Homework:
- Read Section 9.1 of textbook taking notes and answering section questions.
Thursday, February 3, 2011
Wed / Thurs., Feb 2 & 3, 2011
In class:
- Returned Quizzes - Moles & Mass
- Reviewed Empirical & Molecular Formula Problems
- Discussed Chromatography separation techniques w/ paper chromatography mini-lab activity
Homework:
- Percent Composition & Molecular Formula WS (below)
 |
| Please note that questions 1 & 2 are incorrect. Both problems were percent composition problems, but I treated them like empirical formula problems. You should have gotten the correct answer by multiplying the % composition of each element by the total mass of the sample. For example, A 2.786 gram sample of a substance containing 66.5% C would be: (0.665) x (2.786 g) = 1.85 grams of Carbon. |
NOTE:
- Percent Composition Labs are due Friday 2/4
- Quiz covering percent composition problems, empirical & molecular formula problems
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