GCSE Chemistry unlocked — from atomic structure to organic chemistry, clear confident explanations of every key topic and how to approach exam questions.
GCSE Unlocked: Chemistry
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12 episodes
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Podcast Overview
GCSE Chemistry unlocked — from atomic structure to organic chemistry, clear confident explanations of every key topic and how to approach exam questions.
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Publishing Since
4/9/2026
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Recent Episodes
June 25, 2026
The Reactivity Series: Your Chemical Crystal Ball for Predicting Reactions
Join Miss Sarah Blake in this essential GCSE Chemistry episode exploring the reactivity series and how it predicts chemical behavior. Learn how metals are ranked by reactivity and discover the three key types of reactions you can predict: displacement reactions, acid reactions, and water reactions. This episode covers practical examples including metal displacement experiments and explains why some metals react vigorously while others remain unreactive. Perfect for GCSE students studying chemical reactions, displacement reactions, and metal reactivity. Miss Blake explains the connection between atomic structure and reactivity, plus reveals how ancient civilizations unknowingly used reactivity series principles in metallurgy. Essential exam tips included for predicting whether chemical reactions will occur. Topics covered include hydrogen production from acid reactions, metal extraction methods, and the relationship between electron loss and reactivity. Ideal revision material for understanding potassium, sodium, magnesium, zinc, iron, copper, silver and gold reactivity patterns. Learn why the reactivity series is fundamental to understanding chemical behavior and metal chemistry at GCSE level.
June 18, 2026
pH, Acids and Bases: Understanding Chemical Solutions
In this essential GCSE Chemistry episode, Miss Sarah Blake explores the fascinating world of pH, acids, and bases. Learn how the pH scale works as a logarithmic measurement from 0-14, with acids below 7 and bases above 7. Discover what makes substances acidic or basic through hydrogen and hydroxide ion release, and understand neutralization reactions that produce salt and water. The episode covers practical applications including soil pH in agriculture, swimming pool maintenance, and the human body's critical pH balance. Students will gain insights into chemical indicators like litmus paper and natural alternatives such as red cabbage juice. Key GCSE topics include strong versus weak acids, the difference between concentration and strength, and real-world examples from stomach acid to cleaning products. Perfect for students preparing for chemistry exams, this episode makes complex concepts accessible through everyday examples and practical applications. Essential listening for understanding chemical solutions, acid-base reactions, and pH calculations that appear frequently in GCSE Chemistry papers.
June 11, 2026
The Electron Story: Shells, Subshells and Electronic Configuration
In this essential GCSE Chemistry episode, Miss Sarah Blake explores the fascinating world of electronic configuration, breaking down complex concepts into digestible explanations perfect for exam preparation. Learn about electron shells, subshells, and the rules governing how electrons arrange themselves around atomic nuclei. This episode covers the Aufbau principle, Hund's rule, and Pauli exclusion principle, explaining how these fundamental concepts determine chemical behavior and periodic table organization. Students will discover why understanding electron arrangements is crucial for predicting chemical bonding and element properties. The episode includes practical examples from hydrogen to calcium, helping students master the notation system used to describe electronic configurations. Perfect for GCSE Chemistry revision, this content aligns with exam board specifications and provides clear explanations of s, p, d, and f subshells. Whether you're struggling with electron arrangement concepts or need a comprehensive review before exams, this episode delivers the knowledge and understanding required for GCSE success. Miss Sarah Blake's engaging teaching style makes complex atomic theory accessible, ensuring students build confidence in this fundamental chemistry topic that underpins much of chemical understanding.
12 total episodes available
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- What is GCSE Unlocked: Chemistry?
- How often does this podcast release new episodes?
This podcast updates daily.
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This podcast is available on 4 platforms including Apple Podcasts, Spotify, and more. You can also use the RSS feed directly.
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