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States of matter

TermDefinition
product The compounds made during a chemical reaction
reactant The compounds going in to a chemical reaction
physical change when the end material and the beginning material are the same
chemical reaction when a different substance is the end product
coefficient the number BEFORE a molecule, example: 2 Cl, 7 Fe
subscript the little number after a chemical symbol
solid a substance with a definite volume but not a definite shape
liquid a substance with a definite volume but not a definite shape
gas a substance without a definite volume or a definite shape
melting when heat energy is added to change a solid to a liquid
freezing when heat energy is removed to change a liquid to a solid
sublimation when heat energy changes a solid directly into a gas
deposition when heat energy is removed changing a gas directly into a solid
condensation when heat energy is removed changing a gas into a liquid
vaporization/evaporation when heat energy is added changing a liquid into a gas
At what temperature will liquid water change to a gas? 100°C or 212°F
At what temperature will liquid water become a solid? 0°C or 32 degrees F
Created by: lb goodlock
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