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Definitions
Definitions
Definitions
Definitions & Notes & NJASK
NJASK Practice
100
A state of matter.
What is phases
100
The phase change in which a gas changes to a liquid.
What is condensation
100
The pressure exerted by a vapor
What is vapor pressure
100
a mixture in which the solute is dissolved by a solvent
What is solution
100
Doctor Boltzmann wants to find the average energy of motion of the particles within a block of steel. What property of the steel is doctor Boltzmann trying to find.
What is The temp.
200
A change in physical properties of a substance, such as mass, volume, shape, or density, without changing the substance itself.
What is physical change
200
The phase change in which a solid becomes a gas, bypassing the liquid phase.
What is sublimation
200
The amount of space an object or substance takes up.
What is volume
200
The amount of a substance that will dissolve in a given amount of another substance
What is solubility
200
Lead has a density of 11.3 grams cm. What volume of lead has a mass of 226g.
What is 20 cm 3
300
The form of energy arising from the motion of all the particles in a system; it moves between things that are at different temperatures; also called thermal energy.
What is heat energy
300
The phase change in which a gas becomes a solid, bypassing the liquid phase.
What is deposition
300
The amount of matter in something.
What is mass
300
why do you think temp. is the measure of the "average" energy of motion of all the particles in a substance
What is temp. measures the average energy of motion of the particles because not all particles of a substance have the same energy of motion. The particles will have different speeds. Some particles may have more mass than others.
300
What phase of matter has a definite volume but no definite shape
What is liquid
400
The measurement of the average energy of motion (heat energy) of the particles of matter in a substance.
What is temperature
400
The temperature at which a substance begins to change phases from solid to liquid
What is melting point
400
The substance dissolved by a solvent to form a solution
What is solute
400
Suppose you a balloon at room temp., put the balloon into a freezer, and come back an hour later. What will the balloon look like?
What is The balloon will be deflated. When the balloon is filled with gas , the gas moves rapidly. When I gets cold it doesn't move as rapid.
400
What process lets you see your breathe when the air is cold
What is condensation.
500
The phase change in which a liquid changes to gas.
What is vaporization
500
The temperature at which a substance begins to change phases from liquid to gas
What is boiling point
500
the substance that dissolves a solute to form a solution
What is solvent
500
Estella investigated the properties of a grayish, shiny metal with a volume of 85 cubic cm. and a mass of 212.5 grams. Wbat is the density of the substance.
What is 2.5 g/cm 3
500
how is sublimation different from vaporization, condensation, and melting
What is Sublimation doesn't include a liquid phase