1. the important of water
... to support this new hypothesis: water from the tap in a residential area is less hard then areas farther away from the water purifying company. References 1. Brown, Theodore L., H. Eugene LeMay Jr., Bruce E. Bursten. Chemistry: The Central Science. Upper Saddle River: Prentice Hall, 2000. 2. Thompson, Stephen. PSU Version of Chemtrek: August 2000 to July 2001. Englewood Cliffs: Prentice Hall, 2000. 3. http://courses.chem ... ...
- Word Count: 2264
- Approx Pages: 9
- Grade Level: High School