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:

  • 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.
Write & balance rxns
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Homework:

  • Read Section 9.2 with notes and questions.

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.