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CHEMISTRY REVIEW!

Across
Substances on the right side of the arrow
Heat is given off in a chemical reaction
Burning is a ___ change
Abbreviation of a molecule (such as H20)
Abbreviation of an element
The little number that tells how many atoms are in a formula
Higher ___ increases the rate of chemical reaction
More ___ area increases the rate of chemical reaction
A solid forms from two liquids in a chemical reaction
Matter can not be created or ___
Number in front of symbol or formula to balance an equation
New substances are formed in a chemical ___
Down
Physical and chemical ___ describe what a substance is like
Higher ___ increases the rate of chemical reaction
Bending or breaking is a ___ change
Chemical equations must ___, no lost or extra atoms
A chemical reaction written with symbols and formulas
The arrow in a chemical reaction means ___
Heat is absorbed in a chemical reaction
Law of ___ of mass says chemical equations must balance
Substances on the left side of the arrow