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22 Cards in this Set

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