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Williamson's vocab

QuestionAnswer
Law of Conservation of Mass conservation of mass: a fundamental principle of classical physics that matter cannot be created or destroyed in an isolated system.
Physical Change phase change: a change from one state (solid or liquid or gas) to another without a change in chemical composition.
Chemical Change chemical process: (chemistry) any process determined by the atomic and molecular composition and structure of the substances involved.
Element component - cell - constituent - factor
Chemical Formula formula: a representation of a substance using symbols for its constituent elements.
Element (Diatomic) Molecule Diatomic molecules are molecules composed only of two atoms, of either the same or different chemical elements.
Compound Molecule A process that involves rearrangement of the molecular or ionic structure of a substance.
Chemical Equation A chemical equation is symbolic representation of a chemical reaction where the reactant entities are given on the left hand side and right side.
Chemical Reaction A process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form.
Reactants (in a chemical equation) A substance that takes part in and undergoes change during a reaction.
SPEED Rapidity of movement or action: "excessive speed"; "the speed of events".
VELOCITY The speed of something in a given direction.
ACCELERATION Increase in the rate or speed of something.
FORCE A push or a pull
BALANCED FORCE Forces are balanced when the forces pushing (or pulling) an object in one direction are the same size as the forces.
GOGGLES Look with wide open eyes, typically in amazement or wonder.
FIRE BLANKET A fire blanket is a safety device designed to extinguish small incipient (starting) fires. It consists of a sheet of fire retardant.
APRON A protective or decorative garment worn over the front of one's clothes, either from chest or waist level, and tied at the back.
GLOVES A covering for the hand worn for protection against cold or dirt and typically having separate parts for each finger and the thumb.
FIRE EXTINGUSHER A portable device that discharges a jet of water, foam, gas, or other material to extinguish a fire.
Created by: mice
 

 



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