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definitions
definitions
definitions
questions
NJ ASK Questions
100
What is the definition of boiling point?
The temperature at which a substance begins to change phases from liquid to gas
100
what is mass
The amount of matter in something
100
what is a solute
substance dissolves by a solvent to form a solution
100
If you inflate a balloon at room temperature, put the balloon into a freezer, and come back in an hour, what will the balloon look like ?
The balloon will look deflated because the particles move slower and come together
100
What is the density of the substance with a volume of 85 cubic meters
2.5 gm/cm3
200
what is the definition of condensation
It's the phases change in which a gas changes to a liquid
200
what is melted form
The temperature at which a substance begins to chnage phases from solid to liquid
200
what is solution
A mixture in which a solute is dissolved by a solvent
200
what is vaporization
It's water vapor from a cloud to rain
200
What property of the steel is Dr. Boltzmann
Temperature
300
what is the definition of density
It is the amount of mass in a given space
300
what is phase
the state of matter
300
what is solvent
the substance that dissolves a solute to form a solution
300
What is desposistion
It is water vapor to frost on a window
300
what volume of lead has a mass of 226 g
20 cm3
400
what is deposition
The phase change in which a gas becomes a solid, bypassing the liquid phase.
400
what is a physical change
A change in physical properties of a substance
400
what is sublimation
The phase change in which a solid becomes a gas, bypassing the liquid phase
400
What is sublimation
ice in Antarctica goes directly into the atmosphere
400
What is phase of matter has a definite volume but no definite shape
Liquid
500
What is heat energy
The form of energy rising from the motion of all the particles in a system
500
What is solubility
the amount of a substance that will dissolve in a given amount of another substance
500
what is temperature
The measurement of the average energy motion of the particles of matter in a substance
500
Why are iron's melting point so much higher than water's, and why nitrogen's is so much lower than both iron's and water's.
Ions melting point is higher than the water because the attraction of iron atoms is stronger than water
500
What process lets you see your breath when air is cold
condensation