Mr. Zehner's Chemistry Class

Thursday, February 24, 2011

Wed./Thurs. 2/23-24, 2011

Homework:

Complete the odd numbered problems on the worksheet below.

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:

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:

Reviewed predicting reaction products
Discussed net ionic equations

Net ionic equations

View more presentations from zehnerm2.

Homework:

Write net ionic equations for # 11 - 20

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.