Williamson's vocab
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| 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.
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| Physical Change | phase change: a change from one state (solid or liquid or gas) to another without a change in chemical composition.
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| Chemical Change | chemical process: (chemistry) any process determined by the atomic and molecular composition and structure of the substances involved.
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| Element | component - cell - constituent - factor
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| Chemical Formula | formula: a representation of a substance using symbols for its constituent elements.
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| Element (Diatomic) Molecule | Diatomic molecules are molecules composed only of two atoms, of either the same or different chemical elements.
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| Compound Molecule |
A process that involves rearrangement of the molecular or ionic structure of a substance.
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| 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.
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| Chemical Reaction | A process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form.
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| Reactants (in a chemical equation) | A substance that takes part in and undergoes change during a reaction.
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| SPEED | Rapidity of movement or action: "excessive speed"; "the speed of events".
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| VELOCITY | The speed of something in a given direction.
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| ACCELERATION | Increase in the rate or speed of something.
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| FORCE | A push or a pull
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| BALANCED FORCE | Forces are balanced when the forces pushing (or pulling) an object in one direction are the same size as the forces.
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| GOGGLES | Look with wide open eyes, typically in amazement or wonder.
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| FIRE BLANKET | A fire blanket is a safety device designed to extinguish small incipient (starting) fires. It consists of a sheet of fire retardant.
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| 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.
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| GLOVES | A covering for the hand worn for protection against cold or dirt and typically having separate parts for each finger and the thumb.
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| FIRE EXTINGUSHER | A portable device that discharges a jet of water, foam, gas, or other material to extinguish a fire.
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