We just learned about some innovations regarding enantioselective hydrogenation of alkenes which utilize homogeneous catalysis and chiral catalysts. Can we employ the same approach to hydrogenate other functional groups? What about...

When we discussed basic information regarding homogeneous and heterogeneous catalysis, we mentioned hydrogenation of alkenes in both of these contexts. Now let's get more specific and describe the mechanism of this precise catalysis in...

We just finished looking at some catalytic hydrogenation reactions, so let's look at another extremely important application of hydrogen gas. Ammonia is a critically important compound for many reasons, particularly fertilizer production...

Researchers at London's Imperial College are using X-ray crystallography to understand how plants break down water into hydrogen and oxygen through photosynthesis. This breakthrough could lead to the production of cheap hydrogen, as they...

Dr. Boyd performs the popular Elephant Toothpaste demonstration. If you want to try it too, just follow along! Note 1: DO NOT eat or put the foam in your mouth; it is not actually toothpaste or ice cream (it just looks like it). Note 2:...

With the basic principles of homogeneous catalysis understood, let's move on to heterogeneous catalysis. This is where the catalyst and reagents are in different phases. Typically, the reagents are in the liquid or gas phase, flowing...

Now that we understand the goal of transition metal catalysis, it's time to look at the two main ways in which this is achieved. There is homogeneous catalysis and heterogeneous catalysis. Let's focus on homogeneous catalysis first,...

A measure of how fast a reaction is taking place.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...

We demonstrate denaturing by adding the enzyme trypsin to photographic film. Strips of photographic film are added to trypsin solution at different temperatures to determine the optimum conditions for the enzyme. In the right conditions...

We create a rapidly expanding column of foam by mixing chemicals. Hydrogen peroxide and detergent are added to potassium iodide and food colouring to set off a reaction that creates vibrant expanding foam. Chemistry - Reactions -...

Discover that altering the number of successful collisions between particles is key to changing the rate of chemical reactions. How this can be manipulated? Chemistry - ReactionsLearning Points. New substances are made when particles...

A substance that increases the rate of a chemical reaction without itself being permanently changed or used up. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual...

Influence of Temperature & Catalyst on Rate of Reaction - N2O5 dissociation, Role of MnO2 catalyst,influence of surface area of zinc catalyst.<b<br/>r/>

3 Factors influencing Rate of Reaction part 1

In this video you'll learn:<br/>
- Two methods <br/>of cracking
- How to write a balanced<br/> equation for cracking
- What an alkene is, a<br/>nd how they diff<br/>er from an alkane
- The test for alkenes
- The properties of alkenes

In this video, we cover:

- What enzymes
are
- How en
zymes work
- The difference between the lock and key model and the in

duced fit model


Exam board specific info:r/>AQA - Suitable for everyone
IG
CSE...

This video covers:

- What nanoparticles are and why they're u
seful
- The uses of nanoparticles e.g. as catalysts, in nano-medicine, and in electrica
l circuits
- The risks of
nanoparticles
- How silver...

This video covers the difference between the properties of metals and non-metals, and takes a look at transition metals.

This video covers: - Collision theory, and how it relates to the rate of reaction - The effect of temperature - The effect of concentration and pressure - The effect of surface area - The effect of catalysts

Learn the basics about the atom economy principle of Green Chemistry, as a part of environmental chemistry. A reaction with a high atom economy is one where all of the atoms in the reactants are included in the final, desired product....

Diesel - we know it best as the fuel that does the heavy lifting. Typically, diesel fuel is made from crude oil, but scientists can make high-grade diesel from coal, natural gas, plants or even agricultural waste, using a process called...

The video discusses the process of hydrocarbon cracking and its purpose, which is to convert heavier, longer chain hydrocarbons into smaller chain hydrocarbons. The video explains two ways to crack hydrocarbons: catalytic cracking and...

Up until now, chemists who want to design breakthrough drugs, formulate better agrichemicals and develop new smart materials have designed their products using long-established laboratory methods. But, that's about to...

Amino acids, nature makes them, and humans have been making them as well since 1850. The first lab synthesis of amino acids was reported by Adolph Strecker, so it's called the Strecker amino acid synthesis, and despite being so ancient...

In this video, we learn about the metal palladium, which is part of the elite group of metals called the Platinum Group. The video highlights the properties of Palladium, including its usefulness as a catalyst, high resistance to wear...