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Intro to Chem
Introduction to Chemistry - The Basics
| question | answer |
|---|---|
| what is chemistry? | study of what things are made of and how matter behaves/reacts under various conditions |
| why should you study chemistry? | it helps explain the world we live in by describing the changes that matter undergoes as a result of chemicals reacting, how we convert energy, what fuels the sun, why oranges are sour, etc. |
| why is chemistry important to other sciences? | it is used in medicine, agriculture, public service, and teaching |
| what careers are open to chemists? | governmental agencies, businesspeople, consultants for law firms |
| describe linus pauling's accomplishments. | he is the only person to receive 2 unshared Nobel prizes. 1954: chemistry. 1962: peace. 1st person to determine nature of chemical bond. biochemistry. helped determine the structure of a protein, nature of DNA, and role of vitamin C in human health |
| structure of an atom | nucleus (core) contains + protons and ~neutrons, and is surrounded by - electron cloud, which constantly moves in orbit of nucleus |