Vocabulary
A substance with no definite volume or shape is most likely a
gas
The change of state from a solid directly to a gas is called
sublimation
Particles are ____________ packed in the solid state.
closely/tightly
an ionized gas
plasma
total mass
Another name for a homogenous mixture is a
solution
A substance enters into and is altered throught the course of a chemical change. It is called a
reactant
Particles are are quite close together, but have a little space to move around in this state of matter.
liquids
In the solution of water and sugar, water is the ________ and sugar is the _________________.
solvent/solute
Liquid nitrogen is know to be
"boiling cold".
THe change of state from a gas to a liquid is
condensation
A substance that results from a chemical change is called a
product
In this state, particles are spread far apart, and their arrangement is random.
Gas
The___________in a solution is the material being dissolved.
solute
Name three changes of state that can take place when energy is removed from a substance.
freezing, condensation, deposition
A substance with a definite volume, but no definite shape is a
liquid
A substance with a definite volume and shape is a
solid
Particles in a solid do not move.
TRUE or FALSE
False. They vibrate in their fixed positions.
The ________________ is teh material that a solute dissolves in.
Solvent
During which state of change does a gas change to a solid?
deposition
The physical combination of two or more substances results in a
mixture
Boiling and evaporation are types of
vaporization
What keeps particles in a solid in position?
The closeness of the particles and the small forces of attraction between them.
____________________ are two or more meters or of a metal and another solid.
Alloys
Do all substances get smaler when they get colder?
Yes or No. Explain
No. Water expands when it freezes because the molecules are sread farther apart than in liquid water.