Introduction To Chemistry Chapter 1 – Flashcards
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| Celsius temperature scale |
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A temperature scale on which water has a freezing poing of 0oC and has a boiling point of 100oC
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| centimeter (cm) |
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| A unit of length in the metric system; there are 2.54 cm in 1 inch |
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| Conversion Factor |
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| A ratio in which the numerator and denominator are quantities from an equality or given relationship. |
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| cubic centimeter (cm3 or cc) |
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| The volume of a cube that has 1-cm sides; equal to 1 mL |
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| density |
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| The relationship of mass of an object to its volume expressed as grams per cumic centimeter (g/cm3), grams per millileter (g/mL), or grams per liter (g/L) |
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equality |
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| A relationship between two units that measure the same quantity |
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| exact number |
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| A number obtained by counting or by definition |
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| gram (g) |
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| The metric unit used in measurements of mass |
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| Kelvin (K) tempurature scale |
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| A temperature scale on which the lowest possible temperature is 0 K |
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| kilogram (kg) |
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| A metric mass of 1000 g. and equal to 2.20 lb. The kilogram is the SI standard unit of mass. |
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| liter (L) |
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| The metric unit volume that is slightly larger than a quart |
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| mass |
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| A measure of the quantity of material in an object |
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| measured number |
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| A number obtained when a quantity is determined by using a measuring device. (Ruler) |
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| meter (m) |
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| The metric unit for length that is slightly longer than a yard. The meter is the SI standard unit of length |
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| Metric system |
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| A system of measurement used by scientists and in most countries of the world. |
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| milliliter (mL) |
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| A metric unit of volume equal to one-thousandth of a liter (.001 L) |
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| prefix |
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| The part of the name of a metric unit that precedes the base unit and specifies the size of the measurement. All prefixes are related on a decimal scale. |
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| scientific notation |
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| A form of writing large and small numbers using a coefficient from 1 to 9, followed by a power of 10. |
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| second |
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| The standard unit of time in the SI and metric system. |
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| SI units |
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| The international system of units that modifies the metric system |
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| significant figures |
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| The numbers recorded in a measurment. |
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| specific gravity (sp gr) |
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A relationship between the density of a substance and the density of water.
density of sample density of water
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| temperature |
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| An indicator of the hotness or coldness of an object |
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| volume |
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| The amount of space occupied by a substance |
