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Chemistry Terms

important to the preview unit and all others

TermDefinition
Products the substances on the right side of a reaction equation
Reactants the substances on the left side of a reaction equation
Arrow shows the border between reactants and products and an equation and can be read as produces yields make creates but not equals
Phase symbols show the state of a substance (s), (l), (g) or (aq)
coefficients the numbers used in front of formulas when balancing an equation
Kinetic energy is defined as average temperature and measures movement
Endothermic reactions energy is absorbed into the reactant side of the equation. Have +delta H on table I
Exothermic reactions energy is released on the product side of the equation. These have a negative delta H on table I
Temperature average kinetic energy
Pressure The force a substance exerts on things it is in contact with. Measured in atmospheres or kilopascals
Volume amount of space a gas occupies;it is measured usually in liters or milliliters
STP defined values of temperature and pressure found on table A, and used for consistency in reporting things like density, melting pts and boilint pts, and gas calculations.
Relationship betweeen stability and energy The less energy a substance has, the more stable it is.
Created by: PRO Teacher etucci
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