displacement reaction

DISPLACEMENT REACTION

This is a classic example of a single replacement chemical reaction, wherein copper ions precipitate out from solution onto the iron rod as iron atoms leave the rod and enter solution.

The blue color of the liquid is due to the copper ions in solution. You’ll notice that as the reaction proceeds and the copper precipitates out, the solution loses it’s blue color. The iron atoms in the rod give up their electrons to the copper ions in solution, so that the iron becomes oxidized while the copper becomes reduced.

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Just Go With It

Not a request but I just had this idea and I really wanted to write it lol

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“So, single replacement or displacement reaction. In this type of reaction, a more active element replaces a less active element in a compound. ” Mr. Rodriguez explained.

Hands slightly cramping, I scribbled down notes as quickly as possible so that I wouldn’t miss anything important. I was completely engrossed in chemical reactions when I felt a tap on my shoulder. A string of curses ran through my mind as I lost my train of thought. I shook my head, ignored the tap, and continued with my work.

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Copper Crystals on a Penny 

This happens because of a displacement reaction. You have a solution supersaturated with a copper salt, and you add a metal ion that is more reactive than the copper, which steals the cation from the copper salt, leaving a bunch of disassociated copper ions in solution. If you drop the copper penny into it, it provides a nucleation site for the copper ions to deposit themselves, producing what you see in the image. (Source)

anonymous asked:

what are some cy cheating on bh fics?

hey so these are a mix of legit cheating yeol, misconstrued situations, sad/happy endings. just prepare you feels? :>

- Admin Rose

anonymous asked:

Help! I am so incredibly terrible at balancing chemical equations and I'm in honors science and its caused me to drop from a 96% to an 81% any advice or tips??

A lot of people have trouble with balancing equations, so I’m going to explain how I teach them in the hope it might help a few people. I don’t know if it’ll work for you, but I teach my pupils how to balance them using Lego. Let’s use a displacement reaction as an example:

Obviously, you can’t change any of the formulae, so I’ve boxed them off as a reminder. You can only put numbers in front of the different elements or compounds in the equation to balance it. To start with allocate a different coloured lego to each element in the equation. I’m going to use blue for aluminium, green for copper, yellow for sulfur and red for oxygen. I’m also going to use circles because I’m too lazy to draw lego. Just, I don’t know, pretend they’re Lego:

Now, that’s already looking a little more complicated. But remember, all we want to do is ensure we’ve got the same number of each element (each colour circle) on either side of the dotted line. You can see at the moment we’re short of one aluminium (blue), two sulfurs (yellow), and quite a few oxygens (red)! Since aluminium’s the easiest one to solve, let’s do that first - you just need one more blue circle on the left, so if we put a two in front of Al, that solves it:

We also need another two sulfurs. We can achieve that by putting a 3 in front of CuSO4. However, we’ve got to bear in mind that doing this multiplies all the elements in that compound by three. So, as well as ending up with three sulfurs, we’ll also get three coppers and twelve oxygens:

That turns out to have been quite useful, since we’ve now got the right number of sulfurs and oxygens. However, we’ve now got three coppers on the left, when we only have one on the right. That’s easy to fix with a three in front of copper:

And there we have our balanced equation - you can see we’ve now got the exact right number of each element (or each coloured circle/lego). Hope that method helps you!

Seeing Stars (ShiIta)

Fanfiction Link: Here

Rating: Explicit

Pairing: ShiIta

Word Count: 10, 529 (total)

Summary: In the midst of an underground MMA tournament, two fighters get physical with each other in more ways than one.

Previous Chapters: 1 (x) 2 (x) 3 (x)

Chapter 4:

Glancing around at his surroundings, Shisui climbed the rusted staircase at Itachi’s heels, taking in everything around him with a sense of curious wonder. Tiny gardens prospered on little balconies and window sills and the smells of soap and home-cooked meals swept through the hallway. Itachi came to a halt suddenly at one door and procured the key from his pocket, causing Shisui to nearly run into him, still whirling his head around in curiosity. 

“This is your apartment?” Shisui asked, more as a meek statement.

“Yeah, I hope this is alright,” Itachi replied without looking at him, pushing the door open and flicking the light switch. “I never really liked using the public baths.”

“Oh?” Shisui jested. “I wouldn’t have pegged you as the shy type.”

“I wouldn’t necessarily blame shyness as the reason.”

Shisui noted with amusement the hint of defensiveness in the man’s otherwise stoic tone. Once inside, he stopped in his tracks to stare at the small home. Everything was clean and eerily neat, having the appearance of rarely being used, like a museum. All save for the small study desk in the corner where a pile of books lay cluttered next to several used teacups, the gritty remnants of matcha powder lining the bottoms of each. The entirety of the little space was so peculiar and meticulous, and so very Itachi-like.

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anonymous asked:

deancas hs!au with nerd!cas and jock!dean meeting for the first time because i am hs!au trash

He doesn’t turn around after the crumpled sheet of paper hitsthe back of his head the first time, or the second, or the third. He’s certainly not going to turn for the forth.

There are half-whispered mutterings of “Cas” and “C’mon, look angel-face” that he’s studiously ignoring as he works through the equation sheet and fixes unbalanced equations. Already he’s been subject to Jo Harvelle asking him to give Dean Winchester a chance, and stop giving him the cold shoulder.

The cold shoulder, it would seem, is an apt response to being accused of giving the cold shoulder.

Chemistry is Castiel’s favorite subject. He likes working out realistic problems, and likes learning how reactions happen that will have an effect on life and reveal more and more information regarding biology, physics, even mechanics. It’s clear, complicit, and easy to understand, but beautifully elegant in its execution and decoding. Castiel equates it to classic art, in terms of its preciousness.

Others don’t seem to share his view.

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