Three-dimensional bond-line structures | Structure and bonding | Organic chemistry | Khan Academy

– [Voiceover] In the video on bond line structures, we started with this Lewis dot structure on the left, and I showed you how to turn this Lewis dot structure into a bond line structure. So here’s the bond line structure that we drew in that video. Bond line structures contain the same information as […]

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Worm Composting

[intro music] Marjorie Peronto: My name is Marjorie Peronto with the University of Maine Cooperative Extension, and today we’re going to talk about worm composting. Keeping a compost pile going year round in Maine is a challenge. If you’d rather not trudge through the snow to dump your kitchen scraps on your frozen compost pile […]

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CHEMICAL ENGINEERING and PROCESS ENGINEERING | A fun interview whilst playing pictionary!

hello I’m here with my friend Khaoula who is a process engineer and today we are chatting about process and chemical engineering whilst we’re playing pictionary so if you are thinking about doing engineering for your career or maybe you’re just interested in process engineering in general then this is a chap you yes our […]

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The Microworld with Dr. Shoemaker: A Chemical Romance

♪♪>>HELLO AGAIN. I’M DOCTOR SHOEMAKER. AND NO, I DON’T ACTUALLY MAKE SHOES. [GIGGLES] I’M A DOCTOR OF SCIENCE. LET’S LOOK AT ANOTHER CHEMICAL REACTION LIKE YOU’VE NEVER SEEN IT BEFORE UNDER A POWERFUL MICROSCOPE. WELCOME TO THE MICRO WORLD. OH LOOK, SCIENCE! TODAY WE’LL BE LOOKING AT THE BRIGGS-RAUSCHER REACTION, WHICH IS SIMPLY COMBINING POTASSIUM […]

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Introduction to chemistry | Atoms, compounds, and ions | Chemistry | Khan Academy

Here some picture of what most people associate when they think of chemistry. They think of scientists working on a bench with the different vials of different chemicals. They might think of a mad scientist. Some of them boiling and changing colors. They might associate chemistry with chemical equations. Thinking about how different things will […]

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Kyäni Wellness TV: Episode 026–Nitrates, Nitrites, and Nitrosamines

Hello and welcome to another episode of Kyäni Wellness TV. My name is Dr. Andreas Boettcher here at the Scientific Advisory Board at Kyäni, and in today’s video, we’re going to talk about the difference between nitrates, nitrites, and nitrosamines, a known carcinogen. Stay tuned. Well thanks for joining us as always, and if you […]

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