Wednesday, January 7, 2009

List of Polyatomic Ions



Selected Compound Formulas from Mole Mass Calculations


1.c. NH4C2H3O2

1.f. K2SO4

2.c. Ca3(PO4)2

2.e. Fe2(CO3)3


If you are having serious trouble with finding the formulas for these compounds, you can try looking up their names on the internet. However, make sure that if you can't do chemical formulas that you come to tutoring on Thursday.

Monday, November 17, 2008

Periodic Trends Practice

http://www.sciencegeek.net/Chemistry/taters/Unit2PeriodicTrends.htm

Thursday, October 30, 2008

Unit 3 Test Study Guide Activity

Tomorrow's test will cover the standards listed on the Unit 3 - Study Guide.

Each group will need to do the following:
  • Come up with a consensus summary of the notes, activities and worksheets from your HW.
  • Come up with three multiple choice questions.
  • Solutions to multiple choice questions need to be emailed to Mr. Tran. Make sure you sign your group's name and period number and list the answers in the right order.
The best 2 multiple choice questions from each class will appear on tomorrow's test!

Monday, October 20, 2008

Selected Answers to Atomic Structure WS

H+

Atomic Number: 1
Atomic Mass: 1.0079
Mass Number: 1
Protons: 1
Neutrons: 0
Electrons: 0

Ag+1

Atomic Number: 47
Atomic Mass: 107.868
Mass Number: 108
Protons: 47
Neutrons: 61
Electrons: 46