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# Apologia Chemistry

### 2nd edition

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
Created by: reflections319