Curated Video
Food Basics: Proteins
Proteins are at the root of virtually all bodily functions, from growth to metabolism to transporting oxygen around the body. Learn how your body makes or ingests all the protein you need. Chemistry - Chemical Industries - Learning...
Curated Video
Acids and Alkalis: Part 1
The properties of strong acids and alkalis can be extremely harmful. Where do we find them, and how can we tell how acidic or alkaline a substance is? Chemistry - Reactions - Learning Points. Bases neutralise acids, and if a base...
Curated Video
Reactivity Series: Comparing the Reactivity of Group 1 and Group 2 Metals
We compare the reactivity of Group 1 and Group 2 metals. We add sodium and then potassium to water. We observe the reactions. Next we add magnesium and then calcium to hydrochloric acid and observe the reactions. The results let us put...
Curated Video
Stomach Acid and Antacid
We use the enzyme pepsin and hydrochloric acid to simulate the conditions within the stomach in two boiling tubes. Cooked egg whites are ground and added to two boiling tubes of hydrochloric acid, but one is mixed with a crushed antacid...
Curated Video
Agar Cube Diffusion
We use coloured agar cubes to see how different shapes change the rate of diffusion. The cubes are made using sodium hydroxide and phenolphthalein indicator to give them a pink colour. When these are added to hydrochloric acid, the...
Curated Video
Rates of Reaction: Basics
Knowing the rate of a chemical reaction can be very important, particularly for industry. Discover which factors indicate the rate of a chemical reaction, and how you can change it. Chemistry - Reactions - Learning Points. Some reactions...
Curated Video
Bond Fission Explained: Homolytic vs. Heterolytic Splits
Bond fission, the process of breaking chemical bonds, can occur in two ways: homolytic and heterolytic. In homolytic fission, the bond breaks evenly, with each atom receiving one electron, resulting in the formation of free radicals. In...
Curated Video
Revealing the Dynamics : The Effect of Pressure and Concentration on Reaction Rates
Factors Affecting Rate of Reaction - Concentration & Pressure, Rate of Ammonia, electronic explanation, influence of bonds on rate, formation of ZnCl2, role of Effective collisions & Partial Pressures. 3 Factors influencing Rate of...
Institute of Human Anatomy
Removing 80% of the Stomach
In this video, Justin from the Institute of Human Anatomy discusses the bariatric procedure known as the sleeve gastrectomy, as well as the relevant anatomy associated with it.
Curated Video
GCSE Chemistry - Acids and Bases #34
This video is covers what acids and bases are, what the pH scale is, how we measure pH with indicators and probes, and what neutralisation reactions are.
Curated Video
GCSE Chemistry - What is a Limiting Reactant? Limiting/Excess Reactants Explained #27
Limiting and Excess Reactants Explained. Often, in chemical reactions there will be less of one reactant that the other - we call this one the limiting reactant because how much reaction can take place. Whereas the more abundant reactant...
Curated Video
GCSE Chemistry - The pH Scale & Strong vs Weak Acids (Higher Tier) #35
One of the most confusing points with acids is the difference between strength and concentration. This video covers exactly what strong vs weak means and explains what the pH scale really represents. This video is suitable for: - Higher...
Curated Video
GCSE Chemistry - Neutralisation Reactions #36
This video covers how acid react with different types of bases - metal oxides, metal hydroxides, and metal carbonates. It also covers the practical technique of how to make soluble salts from an insoluble base. This video is suitable...
Curated Video
GCSE Chemistry - The Mole (Higher Tier) #25
This video covers the term 'mole', explains 'Avogadros constant', and runs through examples of the sort of calculations you might have to do with moles. This video is suitable for: - Higher tier only - All exam boards - Triple and...
Curated Video
GCSE Chemistry - Moles, Concentration & Volume Calculations #29
This video covers: - How to use the moles = concentration x volume equation - A worked example using the above equation and molar ratios Exam board specific info: AQA - Higher tier only IGCSE Edexcel - Higher tier and separate science...
Curated Video
Is Your Stomach Acid (Gastric Acid) Diluted When You Drink Water?
Short answer: Yes, drinking a lot of water will certainly change the pH of the stomach, but this amount is trivial. However, since your stomach is very acidic, to begin with, drinking water will not dilute it significantly. Also, there...
FuseSchool
How To Measure Loss Of Mass In A Reaction
In this video, we’re going to learn about the loss of mass in a chemical reaction, how it happens and why we measure this. The total MASS of reactants will be the same as that of the products, as mass is always conserved in a chemical...
Curated Video
Chemistry Practical: Investigating the Effect of Concentration on Reaction Rate
This video discusses a required practical experiment in chemistry where the objective is to investigate how increasing the concentration of a reactant affects the rate of the reaction. The hypothesis is that increased concentration leads...
Curated Video
Experiment on How Increasing Reactant Concentration Affects Reaction Rate
The video discusses a required practical activity from the chemistry specification, which is an experiment to investigate how increasing the concentration of a reactant affects the rate of the reaction by observing a precipitate. The...
Curated Video
Conservation of Mass and Chemical Equations
The video discusses the conservation of mass in chemical reactions and the application of this principle in calculating the mass of reactants and products. It also explores the features of chemical equations such as balancing and state...
FuseSchool
Measuring For The Loss Of Mass In A Reaction
In this video, we’re going to learn about the loss of mass in a chemical reaction, how it happens and why we measure this. The total MASS of reactants will be the same as that of the products, as mass is always conserved in a chemical...
Curated Video
Investigating the Effect of Surface Area on the Rate of Reaction
The video discusses the topic of investigating the effect of surface area on the rate of chemical reactions. The presenter explains the concept of collision theory and how chemical reactions occur when particles collide with each other....
Curated Video
Rates of Reaction Experiments: Investigating the Relationship between Concentration and Reaction Time
This is a lecture presentation on rates of reaction experiments. The presenter discusses the concept of the rate of a reaction and how it can be measured. The focus of the experiment is on investigating the relationship between the...
Schooling Online
IB Chemistry: Reliability Part 2
We know that Robin Hood is an accurate and reliable archer, but just how good is he? Is his aim god-like, or is he subject to the errors and imperfections of mortals? This lesson will continue investigating the concept of reliability,...