In this episode, we look at the practical procedure for isolating a pure, dry-soluble salt. The process begins with reacting an acid with an insoluble solid, such as an oxide or carbonate. Next, filtration is employed to eliminate any unreacted solid material. The resulting solution, containing the dissolved salt, then undergoes crystallisation, involving gentle heating in a water bath to evaporate water and promote crystal formation. Finally, cooling allows for further crystallisation, yielding the desired pure, dry salt sample.Don't miss out on subscribing for more educational content tailored to help you succeed in your exams. Perfect for AQA, OCR, Edexcel, CIE and WJEC exam boards.Click here to see all of our GCSE Chemistry content!
In this episode, we discuss soluble salts, which are compounds capable of dissolving in water. The provided text outlines a method for their creation, specifically through the chemical reaction between acids and insoluble solid substances like metal oxides. An example illustrates this process, showing how copper oxide reacts with sulfuric acid to yield the soluble salt copper sulfate and water. This reaction demonstrates a practical approach to synthesising soluble salts in a laboratory setting.Don't miss out on subscribing for more educational content tailored to help you succeed in your exams. Perfect for AQA, OCR, Edexcel, CIE and WJEC exam boards.Click here to see all of our GCSE Chemistry content!
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Reactions of Acids: Neutralisation of Acids 🧪 GCSE Chemistry Learning & Revision
In this episode, we discuss the neutralisation of acids.Neutralisation reactions involving acids are explored in this source, which explains how acids react with different types of bases. Specifically, it outlines the reactions of acids with metal carbonates, metal oxides, and metal hydroxides. For each base type, a general equation is provided alongside a concrete example using hydrochloric acid. These reactions consistently result in the formation of salt and water, with the reaction involving metal carbonates also producing carbon dioxide.Don't miss out on subscribing for more educational content tailored to help you succeed in your exams. Perfect for AQA, OCR, Edexcel, CIE and WJEC exam boards.Click here to see all of our GCSE Chemistry content!
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Reactivity of Metals: Reactions with Water 💥 GCSE Chemistry Learning & Revision
In this episode, we discuss the reactions of metals with water.Reactive alkali metals like potassium, sodium, and lithium undergo exothermic reactions when introduced to cold water. These reactions yield a metal hydroxide and hydrogen gas. Potassium exhibits the most energetic reaction, readily igniting the produced hydrogen and the metal itself with a lilac flame. Sodium reacts vigorously, melting into a mobile sphere on the water's surface. Lithium demonstrates the mildest reaction, steadily fizzing and diminishing as it floats. The reactivity of these metals with water follows the order: potassium > sodium > lithium.Don't miss out on subscribing for more educational content tailored to help you succeed in your exams. Perfect for AQA, OCR, Edexcel, CIE and WJEC exam boards.Click here to see all of our GCSE Chemistry content!
This episode clarifies the fundamental concepts of redox reactions, which involve both oxidation and reduction processes. Initially defined by the gain and loss of oxygen, these terms are further explained through the transfer of electrons. Specifically, oxidation is characterised by the loss of electrons, while reduction involves the gain of electrons. A helpful mnemonic, OIL RIG (Oxidation Is Loss, Reduction Is Gain), is introduced as a memory aid for understanding these electron transfers. Therefore, the episode succinctly outlines the dual nature of redox reactions and offers a practical method for remembering the electron movements associated with each half-reaction.Don't miss out on subscribing for more educational content tailored to help you succeed in your exams. Perfect for AQA, OCR, Edexcel, CIE and WJEC exam boards.Click here to see all of our GCSE Chemistry content!
About REVISE GCSE Chemistry - A podcast by Seneca Learning
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