Today, we started Chemistry by taking four jurnal sheetes. The sheetes included:
- Frayer Charts
- Equilibrium notes
- Jurnal Sheet nr. 4 - Le Chatelier 1
- Jurnal Sheet nr. 12 - Equilibrium 2
Mr. Tucker has begin class with reminding us that he will not be in school on Thursday March 10 and Friday March 11, so we have two days for review for TEST on Monday March 14, 2011.
Next we and Mr.Tucker read pages from our textbook (549 - 550), Chapter 18 Section 2. The text was about Reversible Reactions and Eequilibrium. Now we know that a reversible reaction is one in which the conversion of reactants to products and the conversion of products to reactants occur simultaneously.
2SO2 (g) + O2 (g) <------> 2SO3 (g)
After reading Mr. Tucker gave us few minutes to fill up Frayer charts. We were suposed to write our definition, picture, non- examples and examples of EQ (equlibrium). Then our chemistry teacher explained to the class what is equlibrium.
Equlibrium is a revesible reaction in whichconcentration of reactants + products are constant. Equilibrium is only for gases (g) and substances which soluble in water (aq).
The Equilibrium can be measured:
Keq = [products] / [reactants]  - stands for M
Homework:Jurnal page 4 and questions 1,2 and 4 from page 12