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26 Cards in this Set

  • Front
  • Back
The amount of 3-D space an object occupies, all matter has it
Volume
Measure of the amount of matter/use a balance
Mass
Anything that has mass and takes up space
Matter
Smallest unit of an element
Atom
Pure substance made of only one kind of atom
Element
Substance made from atoms of 2 or more elements chemically bonded together
Compound
Smallest unit of an element or compound that retains all of the properties
Molecule
Depend on the amount of matter present/ex.volume, mass and amount of energy
Extensive properties
Does not depend on the amount of matter present/ex. melting point, boiling point, density, conducting electricity and heat
Intensive properties
Characteristic that can be observed or measured without changing the substances identity/ ex. melting point, and boiling point
Physical property
Change in substances that does not involve changing the identity of the substance, ex. grinding, cutting, melting, and boiling
Physical change
Physical change of a substance from one state to another, ex. solid, liquid, gas
Change of state
Has definite volume and definite shape
Solid state
Has definite volume but indefinite shape
Liquid state
Has no definite volume or shape
Gas state
High-temperature physical state in which atoms lose their electrons, ex. found in
fluorescent bulbs
Plasma
Substances ability to undergo changes that transforms into different substances
Chemical property
When one or more substances are converted into different substances
Chemical change or reaction
Substances that react in a reaction
Reactants
Substances that are formed in a reaction
Products
Energy can be absorbed or released but not created or destroyed
Law of conservation of energy
Same throughout, does not vary from sample to sample
Pure substances
Blend of 2 or more kinds of matter, each keeps its own identity and properties
Mixture
Uniform in composition
Homogeneous
Homogeneous mixtures
Solutions
Not uniform throughout, mixtures can be separated by, ex. filtration, vaporization, centrifuge and paper chromatography
Heterogeneous