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chemisrty
bhkm
12
Chemistry
10th Grade
12/17/2008

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Term
chemistry
Definition
the study of matter
Term
matter
Definition
mass and volume are two characteristics
Term
chemical
Definition
changes that alter the identity of a substance
Term
physical properties
Definition
properties that can be observed without charging the identity of a substance
Term
compound
Definition
substance made of 2 or more elements chemically bonded in a definite amount
Term
mixture
Definition
matter made by combining 2 or more substances but each substance reatains its own properties
Term
protons
Definition
identity of an element is determined by the amount of blank in the nucleus.
Term
electrons
Definition
an ion is formed when an atom gains or loses blank
Term
isotope
Definition
atoms of the same element that have different numbers of neutrons
Term
atomic mass
Definition
the number on the periodic table that tells the number of grams
Term
isotop
Definition
Term
one mole
Definition
6.02 x 10 23
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