WorksheetsQuiz 2
Total questions: 7
Worksheet time: 4mins
When KCl(s) is dissolved in water, the resulting
solution is classified as a
heterogeneous mixture
heterogeneous compound
homogeneous mixture
homogeneous compound
Which processes represent one chemical change
and one physical change?
freezing and melting
decomposition and combustion
decomposition and melting
freezing and vaporization
Which statement describes a chemical property
of silicon?
Silicon has a blue-gray color.
Silicon reacts with fluorine.
Silicon is a brittle solid at 20.°C.
Silicon melts at 1414°C.
At STP, which physical property of aluminum
always remains the same from sample to
sample?
length
density
mass
volume
Given the balanced particle-diagram equation:
Which statement describes the type of change and the chemical properties of the product and reactants?
The equation represents a chemical change, with the product and reactants having
different chemical properties.
The equation represents a chemical change, with the product and reactants having identical
chemical properties.
The equation represents a physical change, with the product and reactants having different
chemical properties.
The equation represents a physical change, with the product and reactants having identical
chemical properties.
A large sample of solid calcium sulfate is
crushed into smaller pieces for testing. Which
two physical properties are the same for both
the large sample and one of the smaller pieces?
mass and density
solubility and density
mass and volume
solubility and volume
Which substance can be broken down by
chemical means?
Cu
Ca
Ce
CO
