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17 Cards in this Set

  • Front
  • Back
Atom
The smallest particle of an element
Chemical Bond
The force that holds two atoms together.
Chemical Change
A change in matter that produces new substance
Chemistry
The study of the properties of matter and how matter changes.
Compound
A substance made of two or more elements chemically combined
Density
The measurement of how musch mass of a substance is contained in a given volume.
Element
A substance that cannot be broken down into other substances by chemical or physical means
Formula
A combination of symbols that shows the ratio of elements in a compound.
International System of Units (SI)
A system of measurement based on multiples of ten and on established measures of mass length and time.
Mass
A measure of how much matter is in an object
Mass is always measured in
Kilograms
Mixture
Two or more substances that are mixed together but not chemically combined
Molecule
A combination of two or more atoms that are bonded together
Physical Change
A change that alters the form or appearance of a substance but does not make the amterial into antoher substance
Symbol
Usually one or two letter set of characters that is used to identify an element
Volume
The amound of space that matter occupies
Weight
A measure of the force of gravity on an object