| A | B |
|---|
| the energy that results from the breaking or formation of chemical bonds | chemical energy |
| "in any chamical or physical process, energy is neither created nor destroyed" is a statment of | the law of conservation of energy |
| the specific heat of a given substance | is unique to that substance |
| the temperature of 323K is equivalent to | 50 degrees C |
| the temperature that is equivalent to 20 degrees C is | 293 K |
| for every investigation, the scientific method | is a logical set of procedures |
| the reason for organizing, analyzing, and classifying data is | to find relationships among the data |
| a theory is an accepted explanation of an observed phenomenon until | repeated data and observation conflict with the theory |
| when applied to scientific measurements, the words accuracy and precision | have distinctly different meanings |
| when determining the number of significant digits in a measurement | all nonzero digits are significant |
| to 2 significant figures, the measurement 0.0255 g should be reported as | 0.026 |
| in division and multiplication, the answer must not have more significant figures than the | number in the calculation with the fewest significant figures |
| the energy that matter has because of its motion | kinetic energy |
| the capacity to do work or produce light | energy |
| a chemical reaction that releases energy | exothermic reaction |
| the fact that mass and energy cannot be created or destroyed is the fundamental concept of the theme of | law of conservation of energy |
| a measure of the average kinetic energy of the particles in a sample of matter is its | temperature |
| in the scientific method, after analyzing data, the next step is to | draw conclusions |
| a proposed explanation of observations | hypothesis |
| a factor that could affect the resuts of an experiment | variable |
| a well-tested explanation of observations | theory |
| a statement or mathmematical expression that reliably describes a behavior of the natural world | law |
| a testable statement used for making predictions and carrying out further experiments | hypothesis |
| a measurement that closely agrees with accepted values is | accurate |
| a chemical reaction that absorbs energy | endothermic process |
