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ChemistryUNit1Study
| Question | Answer |
|---|---|
| Kilo | 10^3 |
| Hecto | 10^2 |
| Deka | 10^1 |
| Deci | 10^-1 |
| Centi | 10^-2 |
| Milli | 10^-3 |
| Micro | 10^-6 |
| Nano | 10^-9 |
| Pico | 10^-12 |
| Mass | Kilograms, kg |
| Length | Meters |
| Temperature | Kelvins |
| Celsius Scale- | based on the freezing point (0 C) and boiling point (100 C) of water. It is possible to have a negative temperature on Celsius scale. |
| Kelvin Scale- | based on molecular motion. Is the SI scale for temperature. The zero point on the Kelvin scale is absolute zero. The theoretical point were all motion stops. One K degree equals one C degree. No negatives in Kelvin! |
| Scientific Notion | Always multiply the coefficients and add the exponents. To divide, divide the coefficients then subtract the exponents. |
| Density- | The measure of compactness of space. D= m/v |
| How to calculate Mass, Volume, and Density | Use the triangle and cover up what you need to find. (dmv) M D V |
| Weight vs. Mass | Weight is a measure of the pull of gravity on a mass. Mass is a measure of the amount of matter in a substance or object. |
| Precision vs. Accuracy | Precision is a measure of how close a set of measurements are to one another; Accuracy is a measure of how close a measurement is to the true value of a measurement. |
| Sig Figs | Exact numbers have UNLIMITED sig figs; either counting of defined |