Physical Changes
A change in matter that does not form a new substance is called a _____ Change.
what is
physical
The process of a liquid changing to a solid is
what is
Freezing
triple points
Rust on a metal garden tool is an example of a ____ change
What is
Chemical
a solution that has more than the normal
amount of solute in the solvent
What is
Concentrated
Quadruple points
Two or more substances that are physically combined and that do
not form a new substance form a/an
What is
Mixture
Which method would best separate a heterogeneous mixture of rice and small metal pieces?
What is
Magnetic Attraction
Quadruple points
The process of a gas changing to a liquid is
What is
Condensation
Three ways to increase the rate of dissolving are to
What is
increase the surface area, Move , or heat the solution
Triple Points
a solution that is holding all the solute that the
solvent can dissolve
What is
Saturated
double points
In a saltwater solution, salt is the substance that is dissolved. Salt
is the
what is
Solute
Triple points
a mixture in which the individual substances
are not spread evenly throughout, or in which
the individual substances are not uniform
What is
Heterogeneous Mixture
Double points
Your ice cream is dripping off the cone. The temperature that the ice cream has reached is its
What is
Melting Point
double points
A chemical change _____ (three)
A) occurs when the atoms in an element or compound are rearranged to form a new substance
B) does not form a new substance
C) causes elements or compounds to lose their individual properties
D) can cause two or more pure substances to change into a new substance
What is
A C D
triple points
a solid solution made of two or more elements, including at least one metal
What is
Alloy
Triple points
In a saltwater solution, water is the substance that dissolves the
salt. Water is the
WHat is
Solvent
Double points
True or False
According to the law of conservation of matter, people can create
and destroy matter.
what is
False
Triple points
When melted candle wax and melted chocolate solidify, the wax and the chocolate have reached their
what is
Freezing points
quadruple points
Three evidences of a chemical change include
A a reversible change
B a change in color
C a change in the state of matter
D a change in odor
What is
Color
odor
State of matter
True or False
According to the law of conservation of matter, matter can change
form.
WHat is
TRUE
DOuble points
Vegetable soup is an example of a/an ____
mixture
What is
Heterogeneous
double points
A homogeneous mixture in which two or more substances are spread evenly throughout the mixture is a
What is
Solution
a mixture in which two or more substances are
spread evenly throughout
What is
Homogeneous Mixture
Double Points
Burning a log in a firepit is an example of a chemical change and the
conservation of matter. When the log burns _____ (2 )
A the wood does not change color
B the wood gives off a distinct odor
C the mass of the ashes in the firepit equals the mass of the original piece of unburned wood
D the mass of the ashes and soot in the firepit plus the mass of the gases in the air equals the mass of the original piece of unburned wood
What is
b
d
If a gas is cooled, it can change to a liquid.
what is
True
A solution and a homogeneous mixture are related because (2)
A they both consist of one substance
B a solution is a homogeneous mixture
C the individual substances in both are spread evenly throughout
D the individual substances in a solution are spread evenly throughout, but
the individual substances in a homogeneous mixture are not spread evenly
throughout
What is
B C