AQA Chemistry Paper 1 Exam With
Detailed Questions And Correct
Answers||Latest Exam
2026/2027||Already Graded A+
element -CORRECT ANSWER A pure substance made of only one kind of atom
atom -CORRECT ANSWER the smallest component of an element having the chemical
properties of the element
periodic table -CORRECT ANSWER a table of the chemical elements arranged in order
of atomic number, usually in rows, so that elements with similar atomic structure (and
hence similar chemical properties) appear in vertical columns.
compound -CORRECT ANSWER A substance made up of atoms of two or more different
elements joined by chemical bonds
electron -CORRECT ANSWER A tiny, negatively charged particle that moves around the
nucleus of an atom.
nucleus -CORRECT ANSWER A region that is located at the centre of an atom and
contains most of the atom's mass (protons and neutrons)
proton -CORRECT ANSWER A subatomic particle that has a positive charge and that is
found in the nucleus of an atom
neutron -CORRECT ANSWER A subatomic particle that has no charge and that is found
in the nucleus of an atom
atomic number -CORRECT ANSWER The number of protons in the nucleus of an atom
atomic mass -CORRECT ANSWER The average mass of all the isotopes of an element
mixture -CORRECT ANSWER A combination of two or more substances that are *not*
chemically combined
chemical reaction -CORRECT ANSWER the process by which one or more substances
change to produce one or more different substances
mass -CORRECT ANSWER A measure of the amount of matter in an object
(g) -CORRECT ANSWER indicates that a substance in a chemical equation is a gas
, (s) -CORRECT ANSWER indicates that a substance in a chemical equation is a solid
(aq) -CORRECT ANSWER indicates that a substance in a chemical equation is dissolved
in solution
(l) -CORRECT ANSWER indicates that a substance in a chemical equation is a liquid
chemical formula -CORRECT ANSWER A combination of chemical symbols and
numbers to represent a substance
chemical equation -CORRECT ANSWER A representation of a chemical reaction that
uses symbols to show the relationship between the reactants and the products
chromatography -CORRECT ANSWER A technique that is used to separate the
components of a mixture based on the tendency of each component to travel or be
drawn across the surface of another material.
filtration -CORRECT ANSWER A process that separates materials based on the size of
their particles.
distillation -CORRECT ANSWER A process used to separate dissolved solids from a
liquid, which is boiled to produce a vapor that is then condensed into a liquid
crystallization -CORRECT ANSWER A separation technique that produces pure solid
particles of a substance from a solution that contains the dissolved substance.
leibig condenser -CORRECT ANSWER Glassware used to condense water vapour, that
consists of two tubes one inside the other with space between for circulation of water.
fractional distillation -CORRECT ANSWER The separation of the components in a
mixture of liquids having different boiling points by vaporization.
John Dalton -CORRECT ANSWER English chemist who developed the Atomic theory of
matter through an experiment of gases. His theory states: A) All elements are
composed of atoms and atoms can't be divided or destroyed. B) Atoms of the same
element are exactly alike. C) Atoms of different elements are different from each other.
D) The atoms of 2 or more elements can join together to form types of matter called
compounds.
J. J. Thompson -CORRECT ANSWER Proposed the "plum pudding" model of the atom,
with electrons as negative particles embedded in a positive cloud.
plum-pudding model -CORRECT ANSWER negatively charged electrons were small
particles held within a positively charged sphere, proposed by Thompson
Detailed Questions And Correct
Answers||Latest Exam
2026/2027||Already Graded A+
element -CORRECT ANSWER A pure substance made of only one kind of atom
atom -CORRECT ANSWER the smallest component of an element having the chemical
properties of the element
periodic table -CORRECT ANSWER a table of the chemical elements arranged in order
of atomic number, usually in rows, so that elements with similar atomic structure (and
hence similar chemical properties) appear in vertical columns.
compound -CORRECT ANSWER A substance made up of atoms of two or more different
elements joined by chemical bonds
electron -CORRECT ANSWER A tiny, negatively charged particle that moves around the
nucleus of an atom.
nucleus -CORRECT ANSWER A region that is located at the centre of an atom and
contains most of the atom's mass (protons and neutrons)
proton -CORRECT ANSWER A subatomic particle that has a positive charge and that is
found in the nucleus of an atom
neutron -CORRECT ANSWER A subatomic particle that has no charge and that is found
in the nucleus of an atom
atomic number -CORRECT ANSWER The number of protons in the nucleus of an atom
atomic mass -CORRECT ANSWER The average mass of all the isotopes of an element
mixture -CORRECT ANSWER A combination of two or more substances that are *not*
chemically combined
chemical reaction -CORRECT ANSWER the process by which one or more substances
change to produce one or more different substances
mass -CORRECT ANSWER A measure of the amount of matter in an object
(g) -CORRECT ANSWER indicates that a substance in a chemical equation is a gas
, (s) -CORRECT ANSWER indicates that a substance in a chemical equation is a solid
(aq) -CORRECT ANSWER indicates that a substance in a chemical equation is dissolved
in solution
(l) -CORRECT ANSWER indicates that a substance in a chemical equation is a liquid
chemical formula -CORRECT ANSWER A combination of chemical symbols and
numbers to represent a substance
chemical equation -CORRECT ANSWER A representation of a chemical reaction that
uses symbols to show the relationship between the reactants and the products
chromatography -CORRECT ANSWER A technique that is used to separate the
components of a mixture based on the tendency of each component to travel or be
drawn across the surface of another material.
filtration -CORRECT ANSWER A process that separates materials based on the size of
their particles.
distillation -CORRECT ANSWER A process used to separate dissolved solids from a
liquid, which is boiled to produce a vapor that is then condensed into a liquid
crystallization -CORRECT ANSWER A separation technique that produces pure solid
particles of a substance from a solution that contains the dissolved substance.
leibig condenser -CORRECT ANSWER Glassware used to condense water vapour, that
consists of two tubes one inside the other with space between for circulation of water.
fractional distillation -CORRECT ANSWER The separation of the components in a
mixture of liquids having different boiling points by vaporization.
John Dalton -CORRECT ANSWER English chemist who developed the Atomic theory of
matter through an experiment of gases. His theory states: A) All elements are
composed of atoms and atoms can't be divided or destroyed. B) Atoms of the same
element are exactly alike. C) Atoms of different elements are different from each other.
D) The atoms of 2 or more elements can join together to form types of matter called
compounds.
J. J. Thompson -CORRECT ANSWER Proposed the "plum pudding" model of the atom,
with electrons as negative particles embedded in a positive cloud.
plum-pudding model -CORRECT ANSWER negatively charged electrons were small
particles held within a positively charged sphere, proposed by Thompson
