drmicrochem.bsky.social
Microbiologist & Chem Prof/Polyglot wannabe/Korean food, media, music/Dogs/Microbes always win/Acid to water the way that you oughta/Teachers open doors-you must enter/she her/Teams 🐻 & 🐆
445 posts
267 followers
184 following
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Me, too.
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These hackers send emails out in bulk on the off chance that they'll hit a weasel. Unfortunately, I think there are a lot of weasels.
Weasels hunting weasels. I'm not sure if that's a good thing or a bad thing.
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Take the naughty video part out & you have the email that my elderly mother got. It terrified her. Luckily, she didn't know what bitcoin was & called me for help, so I was able to stop her.
The people who fall for it are not tech savvy & feel vulnerable. They respond emotionally before thinking.
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Oh, she's got panache!
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Let's pack up all three & deport them. It's doable—ICE has already shown us that you can just deport people willy-nilly.
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They've been good. Promise.
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Ah, the recent Wordle uproars.
Scientists use the word, datum, all the time.
Admin, however, is an abbreviation.
But most importantly, the NYT should verify their choices with Merriam-Webster to obviate future kerfuffles
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Amen
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Could someone please clean up the melted cat on Aisle 2?
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Wise seyge! I vow that dost speketh true
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That's, "Magic Sprinkles for Daddy's Baby-waby".
Do it right or get a slipper chewed up
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That looks like a rustic sphinx moth (Manduca rustica, family Sphingidae). They're also called hummingbird or bee-hawk moths because they can hover like hummingbirds to drink flower nectar. Some species of hawk moths have clear wings.
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The campus where I teach emphasizes native plants & plants that support pollinators. I have opportunities for photography & videography everywhere. Sometimes it's hard to go back inside.
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I find cool caterpillars. This is a sycamore tussock moth caterpillar.
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I'm willing to take the risk
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Yup. The smart lady & coach. Sigh.
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I've been reading posts & a lot of people are really pissed off by this word. Ngl, we science types had an unfair advantage. At least it's a word, unlike that other one, which was an abbreviation.
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When they suspect you have orange tacos, they'll come for you.
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Looks like it. This is how our Labrador completely eliminated our vole problem.
He was a very good boy.
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Easy. Done in a day....
With the Force.
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You better have exact change & don't even think of pulling out a 50.
—Bodega cat
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And you better hurry up!
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I called foul on the nyt.
bsky.app/profile/drmi...
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Electrons gonna get excited & relax.
Energy levels gonna be where they are.
Atoms gonna atom.
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And they're so darn small in the emoji menu.🤓
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Oh, yes. Equilibria are everywhere, not just in chemistry. It's such an important concept & critical thinking tool. I always say that I don't expect my students to become chemists, but studying chemistry gives them yet another set of critical & cognitive tools for understanding their worlds.
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I've always thought so & it's so cool
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In the video above, my Chem II students were using heat to shift the following reaction to the right:
[Co(H₂O)₆]²⁺(aq)(pink) + 4Cl⁻(aq) ⇌
[CoCl₄]²⁻(aq)(blue) + 6H₂O(l).
Then they used cold tap water to shift it to the left.
I hope this wasn't too much. I kind of like teaching equilibrium. 7/7
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Ex: if I add more reactant to an equilibrium, I've now increased reactant concentration in the system. So when equilibrium is reestablished, the product concentration must be higher to balance this out.
I disturbed the equilibrium "on the left", so it "shifted to the right" to reach equilibrium. 6/7
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What LaChatlier's Principle says is that if you disturb an equilibrium by changing reaction conditions (reactant/product concentrations, temperature, pressure), the equilibrium point will shift to reestablish dynamic equilibrium, ie., rate foward = rate reverse. 5/7
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So now rate foward = rate reverse & the concentrations of reactants & products do not change.
This is dynamic equilibrium.
Reactants ⇌ Products
Whether the equilibrium favors the formation of product ("shifted to the right") or reactant ("shifted to the left") depends on reaction conditions. 4/7
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When reactants are 1st mixed, the rate of the forward reaction (reactants ⟶ products) far exceeds the rate of the reverse reaction (products ⟶ reactants). But as more & more product is formed, the rate of the reverse reaction catches up & eventually equals the rate of the forward reaction. 3/7
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Reactants ⇌ Products
Many reactions don't go to completion because their products react with each other to re-form the reactants. We symbolize this type of reaction with the double half arrows above. These reactions achieve a state called dynamic equilibrium.
Here's how to think about it: 2/7
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No, this is a demonstration of Le Chatelier's Principle using a chemical equilibrium between
tetrachlorocobaltate (II) ion, [CoCl₄]²⁻ (blue) and
hexaaquacobalt (II) ion,
[Co(H₂O)₆]²⁺ (pink).
You asked, so here goes....1/7
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Henry follows expert advice.
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Sir, I am a cat. Unhand me & supply treats as an apology.
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White Truck of Doom is my absolute fave.
Let me contribute a historical k/cdrama trope:
Chased to the cliff edge where the hero/heroine falls/jumps to their not death