Foundation, AQA, -Comprehensive
Revision Notes and Question & Answer
Summary
Introduction:
This document covers the full syllabus for AQA GCSE
Chemistry Paper 2 at Foundation level, presented as clear
revision notes alongside structured exam-style questions with
correct answers. Topics include atomic structure, bonding,
states of matter, separation techniques, rates of reaction,
hydrocarbons, the atmosphere, climate change, chemical
analysis, and materials chemistry.
It is designed as an all-in-one revision resource, suitable for
last-minute exam preparation as well as ongoing topic review
aligned with the AQA Foundation specification.
Exam Questions and Answers:
What is an atom? ---Correct Answer---Smallest part of an
element that can exist.
,What is an element? ---Correct Answer---A substance that only
contains one type of atom.
How many elements are there? ---Correct Answer---about 100.
Where are elements displayed? ---Correct Answer---In the
periodic table.
How are the atoms of each element represented? ---Correct
Answer---different chemical symbols.
What are most substances? ---Correct Answer---Compounds.
What is a compound? ---Correct Answer---2 or more elements
chemically combined
What do scientists use chemical formulae to show? ---Correct
Answer---The different elements in a compound and how many
atoms of each element one molecule of the compound contains
What is an equation? ---Correct Answer---What happens in a
chemical reaction.
, What are the reactants? ---Correct Answer---the substances
that react there on the left hand side.
What are the products? ---Correct Answer---The elements or
compounds produced by a chemical reaction on the right hand
side
What is the equation when magnesium is burned in oxygen and
magnesium oxide is produced? ---Correct Answer---
magnesium+oxygen=magnesium oxide.
What are mixtures? ---Correct Answer---Substances containing
two or more different elements that are not chemically bonded
together
What is filtration? ---Correct Answer---used to separate
soluble solids from insoluble solids.
What is crystallisation? ---Correct Answer---A method used to
purify a soluble solid using a saturated solution