Western Governors University D 425
chem assessment exam with full solution 100% correct
\ Terms in this set (44)
A beverage is made by mixing sugar, water Homogeneous mixture
and freshly squeezed lemon juice without
pulp. What is the category of matter of the
beverage?
homogeneous mixture A mixture in which substances are evenly distributed
throughout the mixture
A container of lip balm was left in a car on a Intensive and physical
hot summer day which caused it to melt.
Which properties accurately describe the
melting of the lip balm?
Physical change A change in a substance that does not involve a change in the
identity of the substance
Examples of physical changes Changes of state
Separation of mixture
Deformation
Formation
Chemical Change A change in matter that produces one or more new
substances
Chemical Changes examples rusting iron , digestion of food, burning of gasoline in a car
engine, burning paper
heterogeneous mixture A mixture in which different materials can be
distinguished easily
intensive properties a physical property that remains the same no matter
how much of a substance is present
Extensive physical properties properties that depend on the amount of matter present
Fibers collected at a crime scene have Intensive and physical
electrical conductivity testing performed on
them if they are suspected of containing
metal. Which properties correctly describe
the electrical conductivity of these fibers?
Intensive properties example (color, melting point, boiling point, conductivity, density)
Extensive properties examples volume, mass, amount of energy in a substance
, Given 1 ft = 12 in and 1 in = 2.54 cm 375 cm
If the length of an iron bar is 12.3 ft, what is
the measurement in cm? Use sig figs
chem assessment exam with full solution 100% correct
\ Terms in this set (44)
A beverage is made by mixing sugar, water Homogeneous mixture
and freshly squeezed lemon juice without
pulp. What is the category of matter of the
beverage?
homogeneous mixture A mixture in which substances are evenly distributed
throughout the mixture
A container of lip balm was left in a car on a Intensive and physical
hot summer day which caused it to melt.
Which properties accurately describe the
melting of the lip balm?
Physical change A change in a substance that does not involve a change in the
identity of the substance
Examples of physical changes Changes of state
Separation of mixture
Deformation
Formation
Chemical Change A change in matter that produces one or more new
substances
Chemical Changes examples rusting iron , digestion of food, burning of gasoline in a car
engine, burning paper
heterogeneous mixture A mixture in which different materials can be
distinguished easily
intensive properties a physical property that remains the same no matter
how much of a substance is present
Extensive physical properties properties that depend on the amount of matter present
Fibers collected at a crime scene have Intensive and physical
electrical conductivity testing performed on
them if they are suspected of containing
metal. Which properties correctly describe
the electrical conductivity of these fibers?
Intensive properties example (color, melting point, boiling point, conductivity, density)
Extensive properties examples volume, mass, amount of energy in a substance
, Given 1 ft = 12 in and 1 in = 2.54 cm 375 cm
If the length of an iron bar is 12.3 ft, what is
the measurement in cm? Use sig figs
