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22 Cards in this Set
- Front
- Back
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what is the boiling point of water on the celsius scale?
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100 degrees C
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what is matter?
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anything that has mass and takes up space
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what is chemistry?
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primarily the study of matter and the changes it undergoes
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what is a liter?
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a basic unit of volume
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in the metric system, what do chemists use to make the unit bigger or smaller?
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a prefix
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what is the state of matter in which particles move the most?
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a gas or vapor
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what is the transition from solid directly into vapor?
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sublimination
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what is the transition from liquid into solid?
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freezing
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what is a compound?
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a type of matter composed of molecules that consist of two or more types of atoms chemically bonded together
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what are the two types of mixtures?
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a mixture may be homogeneous (e.g salt water) or heterogeneous (e.g sand and water)
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what are pure substances?
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compounds (e.g water) and elements (cannot be broken down)
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what is the transition from solid to liquid?
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melting
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what is the transition from liquid to solid?
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freezing
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what is the transition from liquid to gas?
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vaporization
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what is the transition from gas to liquid?
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condensation
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what is the transition from solid to gas?
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sublimination
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what is the transition from gas to solid?
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deposition
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what is gram?
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a basic unit of mass
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what is meter?
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a basic unit of length
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what is density?
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mass per unit of volume measures how much matter is packed into a certain volume of a material
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what is a chemical change?
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when a new substance is formed with new properties
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what is a physical change?
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any other change in matter that does not produce a new substance
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