can somebody PLEASE help me with chemistry i want to rip my fucking skin off, i don’t even understand how to balance equations and now i have to start predicting products? i hate this class . smiles

lithium (and a bit other alkalis) hyperfixation..

it is so cool i luv the emissions spectrum i luv how pyrophoric i luv lithium fusion is all so cool

🐞 Mirror image pheromones help beetles ‘swipe right’ to find mates

Mirror image pheromones help beetles 'swipe right’ to find mates

Students often work hard but without direction. Success comes when effort is guided by the right strategy. Don’t just study harder. Study smarter.

my favorite yt video ever

THANK YOU KHAN ACADEMY ILYSM!! SAVING MY CHEMISTRY GRADE

Our favorite FNF duo is back but in Element Catto form

personality and gender on image by the way

BrimFerro, I don’t know how to explain what they are…

Gender: sulphuric genderfluid

Personality: very mean, very bigoted, can’t stand any catto that can easily annoy him, very aggressive, known to react violently to anything that hurts their feelings

Known facts about them: she is so prideful that he thinks she is the perfect ferrofluid (he’s not). He is kept in a titanium-alloy glass jar to keep everyone safe from her because of how he acts and those light red things on his head are her secondary eyes

putting so much stank on that leg…

…it creates a gassier gemerald (not in a heresy way tho I PROMMY)

i press jome button…

rome is gone again. byzantine too, not even the ottomans are still here, the HRE cannot help us either, my tumblerscroll is over, skibidi toilet, ohio lawmnower

wheres my activity bro

Looks at the ingredients of denture cleaners, because my night guard is getting gross.

“bro, is this shit just minty baking powder??? It’s sodium bicarbonate and acid with added hydrogen peroxide.”

The amazing (and deadly) arts and crafts with arsenic

Arsenic, much like lead, is a substance with many useful properties. It provides a brilliant green hue for paint, it kills bacteria as an antibiotic, alloys can be used in semiconductors and batteries, a lovely white glaze can be made for ceramic with it, and it’s a fantastically effective insecticide!

Oh, that last one may have been a hint.

The lovely emerald green color was one of arsenic’s biggest uses well before anyone figured out that it’s also incredibly toxic. Its brightness made it the popular replacement for the previous favorite formulation, Scheele’s Green, which was made with copper.

Scheele’s Green became unpopular as people found it was poisonous but more importantly, tended to darken over time as the copper arsenide oxidized. Therefore, Paris Green came into vogue, which was slightly more stable.

You’ll find Paris Green, or copper(II) acetate triarsenite, in many famous paintings from the 1800s. Georges Seurat’s A Sunday on la Grande Jatte is the prime example of pointillism, and its bright green hues come from arsenic.

It was also used in wallpaper. In the 1892 short story “The Yellow Wallpaper” by Charlotte Gilman, a woman goes gradually insane looking at the yellowish wallpaper of a room in which she is confined. But it’s entirely possible the wallpaper was also literally driving her insane, depending on its formulation!

This is because as the arsenic pigment degrades, it would off-gas. Mold and moisture accelerate the process, which releases arsine gas into the environment. Despite its high lethality, it was never used in World War I as a chemical weapon because it’s also very flammable and would be dangerous to anyone trying to deploy it.

If you can smell the garlic scent of arsine, you’re already enveloped by a more than lethal dose.

But hey, at least the paint has a nice green hue to it.

Somehow, in the mid-1800s, farmers found out that Paris Green paint was also great for killing agricultural pests, including the potato beetle and mice, and went about spraying down crops with it. I don’t think I can even comment on how good an idea that is in retrospect. But it is also the world’s first widely-used insecticide.

(Please, Sherwin-Williams, it’s time to rethink that “COVER THE EARTH” slogan)

But the color! The bright color made it great for clothes too, so factories were dedicated to dyeing fabrics with the nice green tint, with workers dipping their arm into the vat of arsenic-based dye to apply it.

As for its use in medicine, well.. I guess in the era before penicillin, you have to take what you can get. Arsenic defeats bacteria by breaking down their cell membranes. It just has some rather unfortunate side effect on the human as well.

So that’s why we stopped using arsenic to treat bacterial infections. What’s that? We might have to start using it again? Antibiotic resistance is getting too strong for current antibiotics so we’re considering doping them with arsenic to increase potency?

We’re in for a fun future.

oh GOSH NO!!!!!!!!! NO!!!! PUT THAT AWAY!!!!

I’m so strange in comparison to the classmates I’ve befriended in my orgo class. Like these guys talk about going to Mexico for the weekend and going fishing meanwhile, I’m hunched over on the floor, making a human sized scorpion tail hahaha.

Or they’ll wish they had a tape measure to measure a graph and I’m already pulling mine out of my backpack because I’m ✨️overprepaired ✨️

There really is a wide range of stem students huh

Me being gullible is the reason im so good at chemistry.

Concept clarity, exam strategy, and continuous assessment—everything in one course.

I need to post more often…

got confused at what an octane when I was studying chemistry but it’s literally an octagon in chemistry terms

am i hajime hinata for real

i am scared bc i’m already taking a gap year and have a job but i think it would be super fun to work on a research vessel like at sea but i do want to do my phd at some point but im only gonna be 22 once so i dont want to waste it rotting in the lab…..

Blue skin in a patient in a hospital, blue skin in pigs, & blue skin in stage performers.

A man was rushed to the hospital after his skin turned blue. Hospital staff immediately suspected he was not getting enough oxygen, which is usually because a patient is suffering from methemoglobinemia. Normal red blood contains iron in the Fe (ferrous for iron) state with 2 missing electrons, written as Fe²⁺, but in methemoglobinemia, the red blood cells (RBC) contain too much iron, written as Fe³⁺, and this tiny difference—just one electron more—completely changes how iron, which is needed to transport oxygen, behaves in the body. Fe²⁺ can grab oxygen & release it to the body, whereas Fe³⁺ cannot bind oxygen, making the patient blue. As it turned out, thankfully, a medic rubbed his arm with a swab that turned blue. The 42-year-old said, “The £40 set of bedsheets had been gifted to him to keep him warm at the barn property during the winter. But his friend was alarmed to see him looking blue & rushed him to the emergency department at the hospital. It took him a week of daily baths to get it off.

This wouldn’t have occurred with good-quality sheets; however, the dye used on them most likely originated from China, India, Pakistan, or Bangladesh. The dyes they use are typically cheap, water-soluble, known for poor wash-fastness, common in low-cost bedding, & prone to leaching & bleeding. Typically, they include Direct Blue 1, Direct Blue 86 & Direct Blue 199. Direct dyes are small molecules that easily slip between the skin’s proteins. He slept for 14 hours, creating prolonged contact where he perspired under its warmth. Sweat increases permeability. New sheets contain multiple grams of unbound dye.

Game hunters in California found startlingly ‘neon blue’ flesh inside wild pigs. California’s wild pigs are hybrids between domestic pigs & European wild boars that were intentionally released a century ago. They are voracious omnivores. The color was vivid like blueberries. The blue color comes from a rodenticide called diphacinone, which is added for easy identification. It’s not only pig meat that turns blue if they consume rats that have been poisoned by it, but it also includes deer, bears, mountain lions, bobcats, foxes, raptors & geese, as well as the endangered northern spotted owl & SanJoaquin kit fox that might become contaminated if they were exposed to diphacinone. Even humans who eat an animal exposed to it can become ill themselves. Diphacinone remains active in the dead animal’s tissues for some time, even if it’s cooked. The dye is fat-soluble enough to migrate into the tissues. It harms anything that eats it because it prevents the blood from clotting by inhibiting an enzyme that recycles vitamin K, a crucial vitamin needed for clotting. This results in severe internal bleeding because the rodenticide acts as an anticoagulant. The antidote for this is the administration of vitamin K. Trappers have noted wild pigs going out of their way to obtain oats baited with rodenticide, used in squirrel traps.

What about performers who look blue, most famously actors from the movie hit Avatar and the performing group Blue Man Group? They don’t sleep on cheap blue bedsheets from Asia, nor do they consume diphacinone rodenticide, but they do use safe FD&C-approved ultramarine blue or FD&C Blue 1 (trarylmethane dye) and FD&C Blue No. 2 (indigotine, which is the synthetic version of natural indigo). India was the world’s largest supplier of indigo for centuries, & European & American textile industries heavily relied upon it to supply the plant that yielded the blue color. Indigo was the primary dye for Union (Northern) Civil War uniforms. Decades after the war, German chemist Adolf von Baeyer invented indigotin, the synthetic version of indigo. Blue Man Group uses Mehron or Ben Nye oil-based cosmetic greasepaint that is non-toxic, non-sensitizing, & designed for long-term skin contact. Removal requires oil-based cleansers because it doesn’t rub off easily.

Finally, when it comes to flower colors, "roses are red, violets are blue”; the person who wrote that has no clue. In the scientific spectrum relating to light, violets are not blue—they are violet in a distinct spectral region. Violet’s wavelengths are 380-450 nanometers (nm), meaning they are roughly 15-40 billionths of an inch long. Blue light is about 450-495 nm; even though the numbers look close, the physics & biology behind them are very different. Violet and blue strike different types of eye cone cells. We do not have a cone that detects violet directly. Blue light activates only the S-cones, but while violet also activates the S-cones, it also activates the L-cones (red detectors), so that combination produces mostly blue but with a tiny bit of red, creating violet. You can correct people the next time they tell you that violets are blue and roses are red.