AQA CHEMISTRY PAPER 1 (C1 ATOMIC
STRUCTURE) EXAM QUESTIONS WITH CORRECT
ANSWERS GRADED A+
What is a molecule? --CORRECT ANSWER--A molecule is a substance that
has any elements chemically joined
What does a chemical formula tell you about a molecule? --CORRECT
ANSWER--A chemical formula tells the elements in a molecule and the number
of atoms of each element
How is a chemical formula presented? --CORRECT ANSWER--Each element
symbol starts with a capital letter, if there is a second letter it is in lower case
Give an example of a chemical formula --CORRECT ANSWER--
What are state symbols? --CORRECT ANSWER--State symbols show the
physical state of the substance solid (s), liquid (l), gas (g), or dissolved in water
(aq)
Name three properties of Metals --CORRECT ANSWER---Strong
-Good conductors of heat and electricity
-High melting and boiling points
Page 1 of 42
,Name three properties of Non-Metals --CORRECT ANSWER---Weak
-Bad conductors of heat and electricity
-Low melting and boiling points
What are atoms? --CORRECT ANSWER--Atoms are the particles that make up
everything
What is an element? --CORRECT ANSWER--An element is a substance in
which all the atoms are the same
Where are elements shown? --CORRECT ANSWER--Elements are shown in
the Periodic table
How many elements are there? --CORRECT ANSWER--There are around 118
elements
What is a compound? --CORRECT ANSWER--A compound is a substance that
contain two or more elements chemically combined
Describe the properties of compounds --CORRECT ANSWER--The properties
of compounds are usually different to the elements that they are made from
Page 2 of 42
,What is a mixture? --CORRECT ANSWER--A mixture is a substance with
different elements or compounds not chemically combined
Give an example of a mixture --CORRECT ANSWER--An example of a
mixture is sand and water as they are not chemically combined and can be
separated by physical means
State the four different ways of separating mixtures --CORRECT ANSWER--
Four different ways of separating mixtures are filtration, crystallisation,
distillation or chromatography
Describe the process of filtration --CORRECT ANSWER--Pour your mixture
onto the filter paper, the liquid simply passes through the filter paper into the
flask. The insoluble solid cannot pass through and so it stays on the paper
Describe the process of crystallisation --CORRECT ANSWER--Use the method
of filtration to filter off any excess soluble solid. Evaporate the mixture then
transfer the hot mixture onto a dish. Crystals are formed when the mixture has
cooled
Describe the process of simple distillation --CORRECT ANSWER--First we
evaporate the mixture by heating it, the dissolved solid then vaporises. These
Page 3 of 42
, vapours condense in the condenser, the dissolved solid then flows into the
beaker and liquid stays in the flask
Describe the process of chromatography --CORRECT ANSWER--Take a strip
of filter paper and draw a line on the bottom of the paper. Put a small drop of
ink on the line, take a jar full of water up to the line and put the filter paper in.
As the water moves up we see different colours on the paper these are the dyes
in the ink
What were the early ideas of the structure of atoms? --CORRECT ANSWER--
Early ideas of the structure of atoms stated that they are tiny spheres that cannot
be divided
What is the plum pudding model? --CORRECT ANSWER--The plum pudding
model is what scientists suggested is the structure of atoms is after the discovery
of the electron
Describe the plum pudding model --CORRECT ANSWER--The plum pudding
model suggested that an atom is a ball of positive charge with negative electrons
in embedded in it
Describe how Rutherford carried out the gold foil experiment --CORRECT
ANSWER--Rutherford took a piece of gold foil, he then fired tiny positive
alpha particles at the gold foil
Page 4 of 42
STRUCTURE) EXAM QUESTIONS WITH CORRECT
ANSWERS GRADED A+
What is a molecule? --CORRECT ANSWER--A molecule is a substance that
has any elements chemically joined
What does a chemical formula tell you about a molecule? --CORRECT
ANSWER--A chemical formula tells the elements in a molecule and the number
of atoms of each element
How is a chemical formula presented? --CORRECT ANSWER--Each element
symbol starts with a capital letter, if there is a second letter it is in lower case
Give an example of a chemical formula --CORRECT ANSWER--
What are state symbols? --CORRECT ANSWER--State symbols show the
physical state of the substance solid (s), liquid (l), gas (g), or dissolved in water
(aq)
Name three properties of Metals --CORRECT ANSWER---Strong
-Good conductors of heat and electricity
-High melting and boiling points
Page 1 of 42
,Name three properties of Non-Metals --CORRECT ANSWER---Weak
-Bad conductors of heat and electricity
-Low melting and boiling points
What are atoms? --CORRECT ANSWER--Atoms are the particles that make up
everything
What is an element? --CORRECT ANSWER--An element is a substance in
which all the atoms are the same
Where are elements shown? --CORRECT ANSWER--Elements are shown in
the Periodic table
How many elements are there? --CORRECT ANSWER--There are around 118
elements
What is a compound? --CORRECT ANSWER--A compound is a substance that
contain two or more elements chemically combined
Describe the properties of compounds --CORRECT ANSWER--The properties
of compounds are usually different to the elements that they are made from
Page 2 of 42
,What is a mixture? --CORRECT ANSWER--A mixture is a substance with
different elements or compounds not chemically combined
Give an example of a mixture --CORRECT ANSWER--An example of a
mixture is sand and water as they are not chemically combined and can be
separated by physical means
State the four different ways of separating mixtures --CORRECT ANSWER--
Four different ways of separating mixtures are filtration, crystallisation,
distillation or chromatography
Describe the process of filtration --CORRECT ANSWER--Pour your mixture
onto the filter paper, the liquid simply passes through the filter paper into the
flask. The insoluble solid cannot pass through and so it stays on the paper
Describe the process of crystallisation --CORRECT ANSWER--Use the method
of filtration to filter off any excess soluble solid. Evaporate the mixture then
transfer the hot mixture onto a dish. Crystals are formed when the mixture has
cooled
Describe the process of simple distillation --CORRECT ANSWER--First we
evaporate the mixture by heating it, the dissolved solid then vaporises. These
Page 3 of 42
, vapours condense in the condenser, the dissolved solid then flows into the
beaker and liquid stays in the flask
Describe the process of chromatography --CORRECT ANSWER--Take a strip
of filter paper and draw a line on the bottom of the paper. Put a small drop of
ink on the line, take a jar full of water up to the line and put the filter paper in.
As the water moves up we see different colours on the paper these are the dyes
in the ink
What were the early ideas of the structure of atoms? --CORRECT ANSWER--
Early ideas of the structure of atoms stated that they are tiny spheres that cannot
be divided
What is the plum pudding model? --CORRECT ANSWER--The plum pudding
model is what scientists suggested is the structure of atoms is after the discovery
of the electron
Describe the plum pudding model --CORRECT ANSWER--The plum pudding
model suggested that an atom is a ball of positive charge with negative electrons
in embedded in it
Describe how Rutherford carried out the gold foil experiment --CORRECT
ANSWER--Rutherford took a piece of gold foil, he then fired tiny positive
alpha particles at the gold foil
Page 4 of 42
