WorksheetsWords of the Week Review
Total questions: 15
Worksheet time: 30mins
What is an element?
Made up of mixtures
A solution
Two or more elements made up of pure substances
A type of matter made up of pure substances
Which of the following is NOT an example of an element?
Ne
FeO2
H
Ca
Pure substances can be
two or more elements that chemically combine.
mixtures.
solutions.
physically combined.
Compounds are made of
one or more atoms.
two or more elements chemically combined.
two or more elements physically combined.
ionic compounds.
Which of the following is NOT a pure substance?
Gold
Chocolate milk
CO2
Chlorine
Which of the following is a pure substance?
Table salt
Tea
Cereal
Pizza
Which of the following is an example of a molecule?
One atom of Hydrogen
Two of the same elements chemically combined
Two different elements
NaCl
A solution is
an element.
two or more elements chemically combined.
H2O.
a type of mixture with a solute and a solvent.
A solution is
a compound.
an element.
mixed unevenly.
mixed evenly.
Which of the following is NOT a heterogeneous mixture?
chocolate milk
salad dressing
pepperoni pizza
gravel
Which of the following is an example of a chemical formula?
Sodium chloride
Salt
NaCl
Table salt
A compound
can only exist between two or more different types of elements.
is not a bond.
is physically combined.
is an example of an element.
An element is made up of
chemical formulas.
a nucleus.
atoms.
molecules.
Which of the following is NOT a compound?
Sodium Chloride
Table salt
Chlorine
O3
What is the difference between a heterogeneous and homogeneous mixture?
They are both compounds.
They are both pure substances.
Heterogeneous mixtures are mixed unevenly, homogeneous mixtures are mixed evenly.
They are both ionic compounds.
