Curated Video
Changes in Annex A 27001 (merged, deleted, and new controls)
In this video, we will be discussing the changes that have been made to Annex A 27001. Annex A 27001 is a set of controls that organizations can implement to ensure the security of their information. Recently, there have been some...
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Preparing Copper Sulfate Crystals: A Step-by-Step Guide
The video is a lecture presentation on the process of preparing copper sulfate crystals. The presenter explains the reaction between copper oxide and sulfuric acid that produces copper sulfate and water, and the challenges of obtaining a...
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Calculating Energy Changes and Bond Energies in Chemical Reactions
The video explains how to calculate energy changes in chemical reactions by considering the energy required to break bonds and the energy released when bonds are formed. The video also introduces the concept of bond energy, which is the...
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Understanding Half Equations in Electrochemistry
The video gives a brief overview of oxidation and reduction and then focuses on reactions at the cathode and anode in an electrolytic cell. The concept of half equations is introduced and demonstrated through examples, with a focus on...
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Electrolysis of Molten Iron Compounds: Understanding the Process and Real-Life Examples
The video explains the process of electrolysis of molten iron compounds. It discusses what electrolysis is and how it works, with a focus on the movement and reaction of ions at each electrode. The video also explains the concept of an...
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Understanding the pH Scale: Strong and Weak Acids, Acid Concentration, and pH Measurement
This video is an educational tutorial on the pH scale. The presenter goes over the difference between strong acids and weak acids and explains how they dissociate in an aqueous solution. They also cover acid concentration, which is...
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Titration Calculations: How to Determine the Concentration of an Unknown Solution
In this video, the presenter discusses titration calculations, which are useful in determining the concentration of a solution by using a solution of known strength. The video explains the thought process and equations involved in...
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Reactions of Metals with Oxygen, Acids and Water
This video explains the three main types of reactions that metals undergo: reactions with oxygen, reactions with acids, and reactions with water. The video provides word equations and examples of each type of reaction and notes any...
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Electrolysis of Aqueous Solutions and Purification of Copper
The video is a tutorial on electrolysis of aqueous solutions. The speaker introduces the basic rules for electrolysis of aqueous solutions and how to predict the products using those rules. The examples are given for different...
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Electrolysis of Aqueous Copper Sulfate Experiment
This is a lecture presentation on the electrolysis of aqueous copper sulfate. The presenter goes through the theory of the electrolysis with metal electrodes and develops a hypothesis about what happens when copper sulfate solution is...
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Understanding Strong and Weak Acids, Acid Concentration and the pH Scale
This is a science lesson on strong and weak acids. The presenter explains the differences between strong and weak acids, their ionization levels, and their effect on acid concentration. The video also covers the pH scale and how it...
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Social Changes and Demographic Impact on Business Performance
This is a lecture video that discusses the impact of social changes on businesses, focusing particularly on how demographic changes can affect a business's performance. The lecturer examines demographic factors such as population...
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Electrolysis of Aqueous Copper Sulfates: Analysis and Conclusion
The video is a lecture presentation on the electrolysis of aqueous copper sulfates. The presenter discusses an experiment to test the hypothesis about the relationship between the current through the electrolyte and the mass of copper...
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The Relationship Between Force and Momentum Change: Two Examples Explained
This is a physics lesson that explains the relationship between force, momentum, and acceleration. The video explains how force acting on an object causes a change in momentum, and how acceleration is linked to force. The equation, F =...
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Reactivity Series: Finding and Ordering Reactivity of Metals
The video is a lecture presentation about the reactivity series, covering topics such as how to define and order reactivity, and providing examples of reactions between different metals and their reactions with water and acids. The...
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Neutralizing Hydrochloric Acid Experiment: Finding the Mass of Calcium Oxide Required
This video is a lecture presentation on the topic of neutralizing hydrochloric acid. The presenter explains the chemical reactions that occur and demonstrates an experiment to determine the mass of calcium oxide required to neutralize a...
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Making Soluble Salts: Producing Salts from Insoluble and Soluble Bases.
In this video, the presenter explains how to make soluble salts. They begin by discussing state symbols and explaining how they can indicate whether a substance is soluble or insoluble. Then, they outline the steps for producing a salt...
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Reactions of Acids and Metals: Predicting Products and Ionic Equations
This is a video discussing the reactions of acids and metals, and deriving the associated ionic equations. The video covers how different acids produce different salts when reacting with metals, and how to predict the resulting salt....
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Neutralization and Salt Production Reactions Explained
The video is a lecture presentation on the topic of neutralization and salt production. The presenter discusses the reactions between acids and bases, and demonstrates examples of reactions between different types of acids and bases,...
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Investigating Temperature Changes in Chemical Reactions
The video is a tutorial on how to investigate temperature changes in chemical reactions, specifically focusing on the concepts of exothermic and endothermic reactions. The video explains the definition of the two terms and provides...
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Making Salts Experiments: Producing Dry Pure Samples of Copper Chloride in Two Different Ways
The video is a lecture presentation on the process of making salts through experiments. The presenter demonstrates different bases, copper carbonate and copper oxide, and hydrochloric acid. The presenter explains the theory behind the...
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Forces That Change Business Aims and Objectives
This video discusses the pressures that businesses face to change their overall aims and objectives. The speaker explains that businesses are forced to evolve due to changes in the market, customers' expectations, and tastes, as well as...
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Introduction to the pH Scale and Neutralization
The video is a lesson on the basics of the pH scale and neutralization. The instructor discusses the properties of acids and alkalis, how solutions containing them can be described in terms of their acidic or alkaline nature, and how the...
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Electrolysis of Aqueous Copper Sulfates
The video is a lecture presentation on the electrolysis of aqueous copper sulfates. It begins with an explanation of what electrolysis is and what is in the aqueous solution of the metal salt. The presenter then goes on to make some...