January 8, 2009

1. Bellringer
Balance the following equation:

____Ca + _____ H2O --> _____ Ca(OH)2 + _____ H2

2. Complete the lab.

3. Six Weeks Test Review

4. Homework - Study for Six Weeks Test

Review Sheet

Conserving Matter
Law of conservation of matter
Chemical equation
Chemical formula
Reactants
Products
Coefficient
Subscript
Formula unit
Balancing chemical equations

Practice Balancing Equations:
1. _____ Fe + _____ S --> _____ FeS

2. _____ H2 + _____ Cl2 --> _____ HCl


3. _____ Mg + _____ O2 --> _____ MgO


4. _____ O2 + _____ H2 --> _____ H2O


5. _____ HgO --> _____ Hg + _____ O2


6. _____ Ca + _____ H2O --> _____ Ca(OH)2 + _____ H2


7. _____ CH4 + _____ O2 --> _____ CO2 + _____ H20


8. _____ Na2O2 + _____ H2SO4 --> _____ Na2SO4 + _____ H2O2


9. _____ N2 + _____ H2 --> _____ NH3


10. _____ Al + _____ O2 --> _____ Al2O3


11. _____ KMnO4 --> _____ K2O + _____ MnO + _____ O2


12. _____ Na + _____ H2O --> _____ NaOH + _____ H2


13. _____ H2SO4 + _____ NaOH --> Na2SO4 + _____ H2O

Extra Credit
Essay:
Benjamin Franklin said “Necessity is the Mother of invention.” Chemists create materials for a necessity. Some materials that are chemically created include ceramics and plastics. Discuss the physical and chemical properties of each and the advantages and disadvantages of such products.