1.1 Chemistry: The Central Science
1.1 Chemistry: The Central Science
1.1 Chemistry: The Central Science
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1.7 Physical Quantities<br />
Mass, volume, temperature, density, and other<br />
physical properties are called physical<br />
quantities and are described by both a<br />
number and a unit:<br />
• Physical quantity—A physical property that<br />
can be measured.<br />
• Unit—A defined quantity used as a standard<br />
of measurement.