Recyling and Chemistry

1. Recyling and Chemistry A natural fit!

2. What is recycling?

3. When we recycle paper, plastic or aluminum, what does that mean?

4. Plastic is

5. Aluminum is

7. ReduceReuseRecycle

8. 4. Water Runs through the soil and forms aquifers, lakes and rivers The World Recycles Too 1. Water evaporates 3. Rain, snow, sleet or hail falls 2. Clouds form

9. Carbon Cycle

10. Oxygen Cycle

11. Chemistry Recycles Cl K NaCl KCl Na K A new compound Is created from the Atoms of the old ones

12. The Law of Conservation of MassAtoms—matter can be rearranged

13. But matter is neither created nor destroyed in a chemical reaction

14. The Law of Conservation of EnergyEnergy can neither be created nor destroyed: it can only change form

15. E = MC2 Mass/energy are neither created nor destroyed in a chemical reaction The Law of Conservation of Mass and Energy

16. Chemical Reactions

17. A Bologna Sandwich 2

18. A Balanced Equation

20. How to Balance a Chemical Reaction HCl + NaOH H2O + NaCl 2 H 1 Cl 1 Na 2 H 1 Cl 1 Na Already balanced!

21. How To Balance H2SO4+Ca(OH)2 2H2O+ CaSO4 4 H 2 O 1 Ca 1 SO4 4 H 2 O 1 Ca 1 SO4 2 H 1 O 1 Ca 1 SO4 BALANCED!

22. Now you try! C2H6 + O2 C H O CO2 + H2O C H O