CHEM 130 Chapter Notes - Chapter 1: Significant Figures, Degree Symbol, Metric System
Document Summary
Called central science - knowledge of the principles can facilitate understanding of other science. (biology, physics, geology , astronomy, oceanography, engineering, and medicine. Chemistry- study of matter and the changes that matter undergoes. Matter- anything that has mass and occupies space. Macroscopic- all things you can observe with the naked eye. Microscopic (molecular level)- processes you can"t see with the naked eye. Advances in our understanding of chemistry are the result of scientific experiment. Jenner observed that even during outbreaks in europe, milkmaids who had frequent contact with cows, contracted cowpox but developed a natural immunity to smallpox. Predicted that international exposure to the cowpox virus would produce the same immunity to smallpox. Exposed a small boy to the cowpox virus using pus form cowpox lesions of an infected milkmaid. Then exposed the boy to small pox weeks later and just as he had assumed he did not contract it.
