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[Qualitative analysis] Cher… please help!

A student recently reached out to me via whatsapp asking me to help with this Qualitative analysis question. Since the O Level exams are fast approaching (EOYs for sec 3s), I thought I'd very quickly show again how to approach and solve O Level chemistry QA questions....

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[Video] Salt Preparation

In this video, we take a look at the 3 methods:- 1. ionic precipitation, 2. titration and 3. the excess method, and how they are selected to prepare salts. In each question, we start off with a flowchart, with knowledge of the solubility of salts, to select the method...

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Writing Ionic Equations in 4 Easy Steps!

In this short post, I will share with you how you can apply these 4 simple steps to solve/write almost ANY ionic equation! That's like a F.R.E.E [2 marks] in the bag! How To Write An Ionic Equation In 4 Simple Steps Write a balanced chemical equation for the reaction...

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Beginner’s Guide On Energy Changes

Today we are going to discuss on Energy Changes. This is a relatively small chapter (in terms of content) but it can be slightly confusing! Questions on energy change usually appear only in MCQs, but, when it does come out in Paper 2, I always tell my students that...

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