Chapter 3 and 4
Which state of matter is compressible?
Gas
atoms or molecules are separated by large distances and are free to move relative to one another
Gas Matter
Atoms or molecules do not have long-range order
Amorphous Solid
The flammability of gasoline is a
Chemical Property
Matter is neither created nor destroyed in a
Chemical Reaction
Matter undergoes a chemical change when it undergoes a
Chemical Reaction
is a pure substance composed of different atoms that are chemically united (bonded) in fixed definite proportions
Compounds
Atoms or molecules are arranged in geometric patterns with long-range, repeating order
Crystalline solid
A pure substance that cannot be broken down into simpler substances
Element
A pure substance may be either an
Element or Compound
The behavior of matter is driven by
Energy
True or False Mass is smooth and continuous?
False
A mixture may be either a
Homogenous or Heterogenous
the energy associated with its motion
Kinetic Energy
The total energy of a sample of matter is the sum of its
Kinetic Energy and Potential Energy
have a fixed volume because their atoms or molecules are in close contact.
Liquid
atoms or molecules are close to each other but are free to move around and by each other.
Liquid Matter
Two states of matter that assume the shape of their containers
Liquids, Gas
is composed of different substances that are not chemically united but simply mixed together
Mixture
is composed of two or more different types of atoms or molecules combined in variable proportions
Mixture
All known elements are listed in the
Periodic Table
State changes—transformations from one state of matter to another, such as from solid to liquid
Physical Change
The characteristic odor of gasoline is a
Physical Property
the energy associated with its position or composition
Potential Energy
The substances present after the change are called
Products
is composed of only one type of atom or molecule
Pure Substance
Matter may be a
Pure Substance or Mixture
When matter contains two types of atoms, it may be a
Pure Substance or Mixture
In a chemical reaction, the substances present before the chemical change are called
Reactants
have fixed volume and rigid shape
Solid
Atoms may vibrate or oscillate, but they do not move around each other
Solid Matter
atoms or molecules pack close to each other in fixed locations
Solid Matter
states of matter
Solid, liquid, gas
Matter can be classified according to its
States
The energy associated with the random motions of atoms and molecules in matter
Thermal Energy
Energy can be changed from one form to another. True or False
True
Energy can be transferred from one object to another. True or False
True
Energy cannot be created out of nothing, and it does not vanish into nothing. True or False
True
During physical and chemical changes, the total amount of matter remains constant True or False?
True or False
is defined as the result of a force acting on a distance
Work
Matter
is defined as anything that occupies space and has mass
Chemical Property
is one that a substance displays only through changing its composition
Physical Property
is one that a substance displays without changing its composition
Energy
is the capacity to do work
Physical Change
matter changes its appearance but not its composition
Chemical Change
matter does change its composition
Atoms
submicroscopic particles that are the fundamental building blocks of matter
law of conservation of energy
that energy is neither created nor destroyed
Product
the substances present after the change
Reactants
the substances present before the chemical change
Molecules
two or more atoms joined to one another in specific geometric arrangements