Isomers, Spectroscopy and the Ideal Gas Equation: Past Paper Question Analysis
P2 June 2017 Q10 Part of a series looking at past AQA A-level Chemistry questions with a focus on better performance in examinations. If...
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Dec 21, 20221 min read
Amino Acids and Amide Links: Past Paper Question Analysis
P2 June 2017 Q6 Part of a series looking at past AQA A-level Chemistry questions with a focus on better performance in examinations. If...
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Dec 20, 20221 min read
Carboxylic Acids, Their Derivatives and Kc: Past Paper Question Analysis
P2 June 2017 Q5 Part of a series looking at past AQA A-level Chemistry questions with a focus on better performance in examinations. If...
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Dec 20, 20221 min read
Aldehydes & Isomers: Past Paper Question Analysis
P2 June 2017 Q4 Part of a series looking at past AQA A-level Chemistry questions with a focus on better performance in examinations. If...
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Dec 20, 20221 min read
Rate Equations and Arrhenius: Past Paper Question Analysis
P2 June 2017 Q2&3 Part of a series looking at past AQA A-level Chemistry questions with a focus on better performance in examinations....
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Dec 19, 20221 min read
Halogenoalkane Reactions: Past Paper Question Analysis
P2 June 2017 Q1 Hi there... This is the first post in a series looking at past AQA A-level Chemistry questions. I wanted to go beyond the...
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Nov 7, 20222 min read
Enthalpy: Relating Lattice, Solution and Hydration Enthalpies
In this article, the relationship between the lattice enthalpy, enthalpy of solution and hydration enthalpy is reviewed for those studying A
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Apr 19, 20221 min read
Definitions: Enthalpy changes
For the following, let AB represent a compound * ‘The energy change when…’ Lattice Enthalpy *… 1 mole of an ionic compound is formed from...
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Apr 17, 20222 min read
Atomic and Ionic Radii of the Period 3 Elements
Atomic Radii Given that atoms and ions are subject to different environments and forces, it is difficult to assign atomic/ionic radii -...
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Sep 24, 20212 min read
How to Handle Quadratic Sequences
There are several ways to find the equation for a quadratic sequence - I have found the following to be the best. Quadratic sequences...
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Sep 10, 20211 min read
GCSE Trial & Improvement Questions - easy when you know how.
In ‘trial & improvement’ questions, there are steps you can use to guarantee full marks. The idea is to gradually zero in on a reasonable...
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Aug 11, 20212 min read
Balancing Chemical Equations: Protect Molecules with Bubble Wrap...
Over the years, I have tried different strategies to help students balance chemical equations. I've found a number of students want to...
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