| A | B |
|---|
| temperature | a measure of the average kinetic energy in the particles of a sample |
| mass is measured in... | grams |
| volume is measure in... | liters |
| length is measured in... | meters |
| time is measured in... | seconds |
| pressure is measure in... | pascals/atmospheres |
| body temp (C) | 37 |
| room temp (C) | 25 |
| precision | the clossness of a set of results to one another; more sig. digs |
| accuracy | the clossness of a set of results to the actual answer |
| standard temp. | 0.00 c |
| standard pressure | 1.00 atm |
| milli | 1/1000 |
| centi | 1/100 |
| kilo | 100 |
| list 6 different forms of energy | kinetic, potential, internal, external, endothermic, exothermic |
| how is temp. related to Kinetic energy? | as temp. rises, KE goes up |
| what is the difference between heat and temperature? | heat is transformed -- hot to cold ; when object transfer, heat transfers from hot to cold and becomes equal temp. |
| exothermic reaction | process in which E is released from the system to the surroundings; all bond forming |
| endothermic reaction | process by which E is absorbed by the system |
| chemistry | a process of inquiry that looks for regularities in the nature of substances and their interactions |
| where does chemistry affects everyday life? | the clothes we wear, the food we eat, the air we breathe, the cars we drive |
| model | a representation of an object or process that is difficult to observe or manipulate |
| what elements are gasses under standard conditions? | hydrogen, halium, nitrogen, oxygen, fluorine, neon, chloride, argon, krypton, xenon and radon |
| which elements are liquids under standard conditions? | bromine and mercury |
