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Final Exam Vocab Review

Across
a new substance that is created in a chemical reaction
a combination of element symbols and subscripts that tells you the ratio of elements in a compound
horizontal row on the periodic table
substance that cannot be separated into simpler substances by chemical means
A liquid that dissolves a solvent
a process that rearranges the atoms of any substances(s) to produce one or more different substances
a chemical bond that consists of shared electrons
a value between 0 and 4 that describes the pull of an element on another atom’s electrons
Energy is released
difference in charge on each end of the molecule
curved edge on the surface of a liquid in a graduated cylinder
atoms that have the same number of protons in the nucleus, but a different number of neutrons
Will dissolve in water
Negatively charged ion
Mass of one mole of any substance
a neutral group of atoms chemically bonded together
Dissolved in water
vertical column on the periodic table
Down
a substance containing more than one element in which atoms of different elements are chemically bonded together
The starting substances in a chemical reaction
the attraction between water molecules that causes them to stick together
the energy required to completely remove a valence electron from an atom
a compound such as salt (NaCl) in which positive and negative ions attract each other to become stable
6.02 x 10 23 particles
an expression that represents a chemical reaction using symbols and formulas.
Energy is absorbed
the total number of protons and neutrons in a nucleus
a charged atom or molecule
Positively charged ion