Catalyst University
Intestinal Sulfate Reduction to H2S by Sulfur-Reducing Bacteria
In this video, we will explore the source of the major cause of the smell of flatulence. Intestinal sulfate-reducing bacteria reduce sulfate to hydrogen sulfide (H2S). We will see the biochemical pathway here and how it is coupled to...
FuseSchool
How Do Atoms Bond
Learn the basics about how atoms bond when learning about the structure of atoms. Bonds form by the attraction of negatively charged electrons and the positive nucleus of atoms. Atoms have a positively charged tiny nucleus which contains...
Jabzy
Red Vienna - Stuff That I Find Interesting
In this video, Jabzy brings us historical tidbits and unknown facts about the Red Vienna
TMW Media
Atomic Theory of Matter Part 3
This program covers part 3 of the very important topic of the atomic theory of matter. We discuss how atoms combine together to form new compounds. Students review the law of conservation of mass and how the mass of the substances at the...
Curated Video
Chemiluminescence: The Science Behind Glowing Reactions
Chemiluminescence is a light emission phenomenon due to a chemical reaction. Let's learn how and why this type of chemical reaction occurs. Luminescence part 1/3
msvgo
Preparation of Amines: Reduction of nitro compounds
It explains six methods of preparation of amines with the help of associated chemical reactions.
Curated Video
Introduction to Alcohols and their Properties
This video covers alcohols. The presenter explains the general structure and chemical properties of alcohols, including their homogeneous series and naming conventions. The two main methods for producing ethanol, a common alcohol, are...
Professor Dave Explains
Will Synthetic Vitamins Make Me Explode?
The words natural and synthetic are thrown around a lot these days, when talking about foods, medicine, and other things. But what do they really mean, and how are they different? Is one necessarily better than the other? Can the...
Curated Video
Understanding MPK Fertilizers: Sources of Nitrogen, Phosphorus, and Potassium
This video provides an overview of MPK fertilizers, explaining what they are, why they are needed, and where they come from. The video discusses the three main nutrients that are required for healthy plant growth - nitrogen, phosphorus,...
NASA
2020 Weather Patterns Push Antarctic Ozone Hole to 12th-Largest on Record
A cold and stable Antarctic vortex supported the development of the 12th-largest ozone hole on record in 2020. The hole reached its peak extent on Sept. 20 at 24.8 million square kilometers. Music: "Solar Winds" from Universal Production...
Curated Video
Pheromones: How Animals Communicate and Connect
This video explains the concept of pheromones, chemical signals used by animals to communicate with each other. It discusses the different types of pheromones, such as sex pheromones used for reproductive purposes, alarm pheromones that...
NASA
NASA | A Story of Ozone: The Earth’s Natural Sunscreen
In this talk, Dr. Paul Newman tells the story of how scientists and policy-makers safeguarded the Earth’s ozone layer and the world we avoided by by regulating chlorofluorocarbons (CFCs) . Back in the 60s, we used chlorofluorocarbons, a...
Professor Dave Explains
Periodic Table Part 8: Halogens (F, Cl, Br, I, At, Tn)
It's time to check out Group 17 on the periodic table, the halogens. This includes fluorine, chlorine, bromine, iodine, astatine, and tennessine. What can we say about their properties, reactivities, and applications? Let's find out!
Professor Dave Explains
IIT/JEE Chemistry Practice #25: Enthalpy of Formation
Practice REAL problems from actual past IIT/JEE exams with Professor Dave!
Professor Dave Explains
IIT/JEE Chemistry Practice #16: Chemical Bonding
Practice REAL problems from actual past IIT/JEE exams with Professor Dave!
Professor Dave Explains
Practice Problem: Reaction of a Terminal Alkyne
We've got a terminal alkyne, and we're gonna do some stuff to it. What will we get? What's that Grignard reagent gonna do? Be careful!
Professor Dave Explains
Elemental Analysis: Empirical and Molecular Formulas
There's a thing with carbon and hydrogen in it. But how many of each?! That's the kind of thing a chemist should know. So let's do some elemental analysis!
Professor Dave Explains
Practice Problem: Synthesis Challenge
We've got a target molecule to synthesize, and we have to start from benzene and other reagents of three carbons or less. How are we gonna do this? Think about the reactions you know, especially some electrophilic aromatic substitution,...
FuseSchool
The Functional Group Concept Explained
This is the introduction to the Functional Group concept - giving an oversight about Organic Chemistry, the composition of Alkenes.
Professor Dave Explains
The Composition of Rocks: Mineral Crystallinity and Bonding Types
What is a mineral? How are minerals classified based on their elemental composition, crystalline structure, and bonding type? Learn the basics of mineral composition and classification in this video.
Minerals part 1
Professor Dave Explains
Ugi Reaction
We just learned about the Passerini reaction, and now it's time to learn a similar one, the Ugi reaction. This is another multi-component reaction that is excellent for generating chemical libraries. To the components of the Passerini...
Catalyst University
How Can Smoking Cause Lung Cancer
Here, I present one of the most important mechanisms for the carcinogenic properties of cigarette smoking. P450-oxidized metabolites of benzo[a]pyrene damage DNA and can induce mutations leading to the uncontrolled cell growth associated...
Curated Video
Here's Why You Should NEVER Mix Bleach and Ammonia
Ammonia and bleach are very popular for cleaning surfaces. However, the fact that you should NEVER mix ammonia and bleach is so well-known because their combination may lead to the formation of dangerous, potentially hazardous byproducts...