AQA AS Chemistry Student Unit Guide: Unit 1 Foundation Chemistry

Summary:
Student Unit Guides are perfect for revision. Each guide is written by an examiner and explains the unit requirements, summarises the relevant unit content and includes a series of specimen questions and answers.

There are three sections to each guide:

Introduction - includes advice on how to use the guide, an explanation of the skills being tested by the assessment objectives, an outline of the unit or module and, depending on the unit, suggestions for how to revise effectively and prepare for the examination questions.

Content Guidance - provides an examiner's overview of the module's key terms and concepts and identifies opportunities to exhibit the skills required by the unit. It is designed to help students to structure their revision and make them aware of the concepts they need to understand the exam and how they might analyse and evaluate topics.

Question and Answers - sample questions and with graded answers which have been carefully written to reflect the style of the unit. All responses are accompanied by commentaries which highlight their respective strengths and weaknesses, giving students an insight into the mind of the examiner.

• A revision guide specifically written to meet the requirements of the unit
  

• Written by an examiner with commentary on key points and concepts
  

• Features specimen questions and answers, together with examiner's comments
  

Table of Contents:
Introduction
About this guide
Revision schedule
Unit Test 1
Content Guidance
About this section
Atomic structure
Fundamental particles — protons, neutrons and electrons
Electron arrangements
Amount of substance
Relative masses, the mole and the Avogadro constant
The ideal gas equation
Empirical and molecular formulae
Balanced equations and associated calculations
Bonding
The nature of ionic, covalent and metallic bonds
Bond polarity
Forces acting between molecules
States of matter
Shapes of simple molecules and ions
Periodicity
Classification of elements in s, p and d blocks
Properties of the elements of period 3
Introduction to organic chemistry
Definitions
Naming organic compounds
Isomerism
Alkanes
Crude oil and fractional distillation
The cracking of alkanes
The combustion of hydrocarbons
Questions and Answers
About this section
Q1 Atomic structure and mass spectrometry
Q2 Electron arrangements and ionisation energies
Q3 Amount of substance (I)
Q4 Amount of substance (II)
Q5 Types of bonding
Q6 Bond polarity
Q7 Intermolecular forces and states of matter
Q8 Types of crystal
Q9 Shapes of molecules and ions
Q10 Periodicity
Q11 Nomenclature and isomerism in organic chemistry
Q12 Alkanes