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Apologia Chemistry
2nd edition
| Question | Answer |
|---|---|
| Matter | Anything that has mass and takes up space |
| What is the measurement system that scientists use? | Metric System |
| Mass is measured by | grams |
| Distance is measured by | meter |
| volume is measured by | liter |
| time is measured by | seconds |
| 1 millimeter is _____ meters | 0.001 |
| 1 centimeter is _____ meters | 0.01 |
| 1 kilometer is _____ meters | 1000 |
| Chemistry is the study of ______ | Matter |
| What does not have mass? | light |
| the metric unit for weight is the ______ | Newton |
| to convert between units, you use the ___________ | facter-label method |
| derived units are | units that are derived from the basic units that makes the metric system |
| 1 cubic centimeter is the same as 1 ________ | millimeter |
| when measuring a liquid, the curved surface is called the _________ | meniscus |
| Accuracy | An indication of how close a measurement is to the true vale |
| precision | An indication of the scale on the measuring device that was used |
| A digit within a number is considered to be a significant figure if it is a ____-_____ | non-zero |
| A digit within a number is considered to be a significant figure if it is a ____ that is ____________________ | zero between two significant figures |
| A digit within a number is considered to be a significant figure if it is a _____ at the ___________________ and to the ____________________________ | zero, end of the number, right of the decimal point |
| you always represent a number as a something times a power of ____ | 10 |
| Adding and Subtracting with Significant Figures: | When adding and subtracting measurements, round your answer sot that it has the same precision as the least precise measurement in the equation. |
| Multiplying and Dividing with Significant Figures: | when multiplying and deviding measurements, round the answer so that it has the same number of significant figures as the measurement with the fewest significant figures. |
| The definitions of the prefixes in the metric system and the integers we use in fractions are... | not considered when determining the sighnificant figures in the answer |
| Density | An object's mass divided by the volume that the object occupies |
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