Class-Thursday,February 02/25/2010

Today students composed a comic story considering themselves as a element from the periodic table. They had to choose 7 other elements from the group 1,2 & 13- 17.Based on their characteristics they had to show if they can be the friends of some elements and form a bond or not.

Review for the Friday's test 02/25/10

Homework: Study your notes and previous tests

Reminder: Test on Friday(02/26/10)

Class-Thursday,January 01/24/2010

Today students learned about the:

•  applications of law of conservation of mass
• Exothermic and endothermic reactions, examples and graphical representation of both types of equations

Reminder: test on Friday 02/26/10

Class-Tuesday,February- 01/23/10

Reviewed  previously learned  concepts by completing quiz from USA TEST PREP

Students designed a model of four types of chemical equations by using M&M's

Homework: Wtite the formula and names of the given compounds/molecules

• Li & O
• H & O
• P & Cl
• Na &  I

Reminder: class-test is on Friday 02/26/10

Class-Monday,February 02/22/10

Students made foldable(table fold) for the types of chemical reactions.
They learned about the :

• Signs of the chemical reactions
• Why it matters- how it is related to everyday life?
• In a chemical reaction,bonds are rearranged between atoms
• Bonds - broken down- energy is absorbed(endothermic reaction)
• Bonds-formation- energy is released(exothermic reaction)

Homework- Q1-3 page 195

Class-Friday,February 02/19/2010

Today students worked on the

Station about the Law of conservation of mass:

• they classified and balanced the chemical equations
• they created models of chemical equations by using gum drops.

Class-Thursday,February 02/18/2010

Review:

•  Naming of ionic and covalent compounds
• Balancing equations

Today students learned about:
Types of chemical reactions:

• Synthesis
• Decomposition
• Single replacement
• doule replacement

Class-Wednesday,February 02/17/10

Benchmark test discussion

Class-Tuesday,February- 01/16/10

Benchmark Test

Class-Monday,February 02/15/10

Review:

• Balancing  Equations
• write formulas of ionic and covalent compounds
• Atomic Structure

Homework: Study class-notes and previous tests

Reminder: Benchmark Test on Tuesday02-16-10

Class-Wednesday,February 02/10/10

Review:Atomic structure

Students learned about:
Naming Binary Covalent Compounds

Homework:Study class notes.

Reminder:Benchmark test on Friday 02/12/10

Class-Tuesday,February- 02/09/10

Review: Ionic Bonding

Class discussion about the test.

Homework: Write the name of the anions,their symbol,charge and the elements name.

Reminder:Benchmark Test on Friday 02/12/10

Class-Thursday,February 02/04/2010

Review: Atomic Structure

Today students learned about:
Naming of Binary Ionic Compounds

Steps to write the formula:
1.Write the name of the cation first with the appropriate charges( as superscript) and then anion
2. Criss-cross the charges
3. write the formula ( chages as subscript)

Nomenclature:
1. write the name of the cation first as it is
2. write the name of the anion ending with -ide
Ex: NaCl-Sodium Chloride

Reminder:Test on Friday 02/04/10

Class-Wednesday,February 02/03/10

 Compare and contrast Ionic and Covalent bonding. Give an example of each type of bonding
 Station Teaching: Atomic structure

  Reminder: Test on Friday 02/03/10

Class-Tuesday,February- 02/02/10

Review:Ionic Bonding and charge on ions

Today students learned about:
Covalent Bonding- Sharing of electrons(Non Metal+ Non Metal)

• Single Bond- Two atoms share one pair of valence electrons. Ex: F &F
• Double Bond-Two atoms share two pairs of valence electrons Ex: O &O
• Triple Bond-Two atoms share three pairs of valence electrons. Ex:N & N

Homework: With the help of the periodic table make 4 covalent molcule and show the bonding in terms of electrons.

Class-Monday,February 02/01/10

Review:  Ionic Bonding

Students learned about:
Formation of ions/Charge-Depend on the number of valence electrons an atom lose/gain to become stable(like noble gases)

Homework-Illustate the type of bonding in terms of electron movement:
1. NaCl
2.Mg and Cl
3.H and Oxygen
4. Cl and Cl