Chapter 2: Matter Flashcards
Which of the following can change with a solid object’s change in location?
Weight
Matter freezes when there is not enough vibrating energy to overcome the forces holding atoms together.
True
A change of state is a physical change.
True
When the temperature of an object rises, the _____ of the particles also increases.
speed
What has indefinite volume?
Gas
A chocolate chip cookie is what kind of mixture?
Heterogeneous
Sugar dissolving is described as a ____________ change.
physical
Wood burning is described as a ____________ change
chemical
Compounds and solutions are mixtures.
False
What has a definite shape?
Solid
Ice cubes become water.
Melting
Dew is seen in the morning.
Condensation
Dry ice disappears in the freezer.
Sublimation
Molten iron hardens.
Freezing
Perspiration disappears from the skin.
Evaporation
What is not a physical property?
Flammability
Atoms can bond to form what?
Molecules
Silver tarnishing is described as a ____________ change.
Chemical
What has the highest kinetic energy?
Gas
Liquids have low compressibility.
True
Both elements and compounds are…
pure substances
What does not indicate an increase in the speed of particle motion?
Deposition
What is a heterogeneous mixture?
Granite
Homogeneous mixture is also called a…
solution
The most workable model for the description and explanation of matter is best expressed as the…
kinetic molecular model of matter
The current scientific paradigm of matter is based on that of Aristotle.
False
The ancient particle theory of matter was rediscovered through the study of Greek and Roman writings.
True
Volume and mass are fundamental properties of all…
matter
The two Ancient Greek theories of matter were the __ model and the __ model.
continuous; particle
The gradual spreading of a substance throughout a gas liquid or solid is called…
diffusion
What kind of solid is a diamond?
Crystalline
Most substances that contain carbon are classified as organic substances.
True
An element contains only one kind of…
Atom
The different states matter can share at the same time
Such as ice in water are called…
phases
__ are low viscosity liquids used to __ frictions.
Lubricants; Reduce
Liquids and gases are both fluids.
True
Atmospheric pressure directly effects what properties of a pure substance with thermal energy.
Boiling point
Gas particles move aster than those in solids liquids do at a given temperature.
True
Heating and cooling result in the transfer of __ energy.
Thermal
In a __ the attractive forces between particles are too small to overcome the tremendous kinetic energy of the particles.
gas
What’s another word for freezing?
Solidifying
Liquids have a definite shape and volume.
False
What are 3 chemical properties?
-Flammability
-Acidity
-Reactivity
Movement of bits of matter in liquids and gases.
Brownian motion
