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Chemistry Test
Chemistry Test 2 Review
| Question | Answer |
|---|---|
| Precision | The closeness of one series of measurements of some quantity |
| Accuracy | How closely a set of measurements represents the true value of what is being measured |
| Density | Amount of matter in a given volume or space |
| Specific Heat | The amount of heat energy needed to warm 1gram of a substance 1 〫Celsius |
| Absolute Zero | The point where no more heat can be removed from a system |
| Equations for: Celsius Fahrenheit and Kelvin | F= 32+ 9/5 x C C= 5/9 (F-32) K= C+ 273.15 |
| Equations for Density | d=m/v m=dv v=m/p |
| Significant Figure Rules | 1. All non-zero numbers are significant ex: 23 -> 2 sig. figs. 2. Zeros btwn non-zero numbers ARE significant ex: 3016 ->4 sig. figs. 3. Zeros @ the end of a number AND to the right of the decimal place ARE significant ex: 25.00 -> 4 sig. figs. 4... |
| Equation for Density and Specific Heat | SH= Heat NRG --------- mass x change in temp. |
Created by:
lhogan9