Skip to content

Crunch Chemistry

The ultimate A level chemistry resource

  • Fundamentals
    • Maths skills for chemists
    • Calculations for AS and A level Chemistry
    • Working with gases
    • Atoms and ions
    • Bonding and Structure
    • Environmental chemistry
  • Inorganic chemistry
    • Redox reactions
    • Explaining the chemistry of Group 2 metals
    • Explaining the chemistry of the Group 7, the halogens
    • Bonding in the nitrogen oxides and oxyanions
    • Trends in Period 3
    • Transition metal chemistry
  • Organic chemistry
    • How do organic reactions actually happen?
    • Stabilising carbocations through inductive and mesomeric effects
    • Alkanes and Crude Oil
    • Alkenes
    • Halogenoalkanes
    • Alcohols
    • Carbonyl compounds
    • Organic nitrogen compounds
    • Benzene and other aromatic molecules
  • Physical chemistry
    • Acids, bases, buffers and pH
    • Chemical equilibria
    • Electrochemistry
    • Enthalpy changes
    • Entropy
    • Reaction kinetics
    • Solubility
  • Analytical chemistry
    • How does electromagnetic radiation affect molecules?
    • Atomic absorption and emission spectroscopy
    • Mass spectrometry
    • Infrared spectroscopy
    • Nuclear magnetic resonance spectroscopy
    • Mixed spectra long answer exam question practice
    • Everything you need to know about chromatography
    • Qualitative analysis
  • Newsletters …
  • 1:1 chemistry tuition …

Tag: ionisation enthalpy

Cat Links Fundamentals

Ionisation energy – true or false quiz!

Posted on November 14, 2024November 14, 2024 Sarah Parkes
Cat Links Inorganic chemistry

The elements of Period 3

Posted on February 15, 2024February 27, 2024 Sarah Parkes

Atomic radius Dedicated post explaining the trend in atomic radius is right here! Melting points and structure The melting point

Continue readingThe elements of Period 3

Cat Links Fundamentals

Metallic bonding and properties of metals

Posted on June 29, 2022October 2, 2024 Sarah Parkes

Metal atoms find it fairly easy (in terms of energy) to lose their outer-shell or valence electrons. They have a

Continue readingMetallic bonding and properties of metals

Cat Links Calculations, Exam question practice, Physical chemistry

Born-Haber cycles

Posted on April 19, 2022February 6, 2025 Sarah Parkes

Born-Haber cycles are simply a fancy Hess cycle transposed onto an energy level diagram and we can use them to

Continue readingBorn-Haber cycles

Recent Posts

  • The chemistry of amines
  • Don’t know what your calculations mean? You’re not alone!
  • Mixed spectra long answer exam question practice
  • Understanding the structure of benzene
  • What is a homogeneous catalyst?

Recent Comments

No comments to show.
  • Contact me!
  • About me ….
Copyright © 2025 Crunch Chemistry | Signify Education by WEN Themes
Scroll Up