Chemický rozklad
Chemický rozklad je chemická reakcia, pri ktorej z jedného zložitejšieho reaktantu vznikajú dva alebo viac jednoduchších produktov.
R ------- P1 + P2 +...
reaktant produkty
reaktant------produkt+produkt
Pokus k chem rozkladu:
Katalytický rozklad peroxidu vodíka
pomôcky:
skúmavka, stojan na skúmavky, špajle, zápalky
chemikálie:
10% roztok H2O2, pevný MnO2
postup:
Do skúmavky nalejte asi 1 ml peroxidu vodíka a pridajte na špičku malé lyžičky pevného bureli.
V skúmavke prebieha veľmi búrlivá reakcia katalytického rozkladu peroxidu vodíka - pomocou tlejúci špajle možno dokázať vznik kyslíka, špajle sa rozžhne.
princíp:
Peroxid vodíka sa rozkladá za katalýzy bureli (oxidu manganičitého) na vodu a kyslík.
Burel tu funguje ako katalyzátor - čo je látka, ktorá vstupuje do reakcie a vystupuje z nej nezmenená - dochádza k zníženiu aktivačná energia reakcie.
využitie:
kinetika - vplyv katalyzátora; vodík, kyslík a ich zlúčeniny - dôkaz kyslíka
Typ pokusu:
demonštračné aj laboratórne - pod dohľadom učiteľa
bezpečnosť:
nepotřísnit sa peroxidom vodíka, reakcia je búrlivá - vykonávať pod dohľadom učiteľa
Časová náročnosť:
príprava - 5 minút, vlastné prevedenie - 5 minút
Tipy & triky:
- Rozklad peroxidu vodíka za katalýzy bureli prebieha veľmi búrlivo a dlho - kým sa nespotrebuje všetok peroxid vodíka - je teda lepšie použiť menšie množstvo, pokus aj cez to bude vidieť
- Po prípade použiť odmerný valec - ako v prípade videa z Internetové video-databázy chemických pokusov ZF JU
Komentáre
Prehľad komentárov
I think this is one of the most significant info for me. And i am glad reading your article. But wanna remark on few general things, The website style is perfect, the articles is really great : D. Good job, cheers schampo för tjockt hår glener.womeddse.com/music/schampo-foer-tjockt-hr.php
ralph lauren gröna byxor
(ralph lauren gröna byxor, 31. 1. 2021 23:55)
I'm truly enjoying the design and layout of your site. It's a very easy on the eyes which makes it much more pleasant for me to come here and visit more often. Did you hire out a designer to create your theme? Fantastic work! ralph lauren gröna byxor womeddse.com/relaxation/ralph-lauren-groena-byxor.php
lasagne i långpanna recept
(lasagne i långpanna recept, 31. 1. 2021 13:55)
Wonderful blog! I found it while surfing around on Yahoo News. Do you have any tips on how to get listed in Yahoo News? I've been trying for a while but I never seem to get there! Appreciate it lasagne i långpanna recept cious.womeddse.com/beautiful-things/lasagne-i-lngpanna-recept.php
klackskor på nätet
(klackskor på nätet, 31. 1. 2021 10:49)
This article is actually a good one it helps new net visitors, who are wishing for blogging. klackskor på nätet devsyp.prizezwom.com/relaxation/klackskor-p-naetet.php
presentask för pengar lösning
(presentask för pengar lösning, 31. 1. 2021 7:36)
Thanks for ones marvelous posting! I truly enjoyed reading it, you could be a great author. I will make sure to bookmark your blog and will often come back someday. I want to encourage you to continue your great posts, have a nice weekend! presentask för pengar lösning chaobm.womeddse.com/delicious-dishes/presentask-foer-pengar-loesning.php
frisör stinsen centrum
(frisör stinsen centrum, 31. 1. 2021 1:19)
Wow, amazing weblog layout! How long have you ever been blogging for? you made blogging look easy. The total glance of your website is fantastic, as neatly as the content material!
frisör stinsen centrum scorak.womeddse.com/relaxation/frisoer-stinsen-centrum.php
gå ner i vikt lchf
(gå ner i vikt lchf, 30. 1. 2021 16:58)
Hello! Quick question that's entirely off topic. Do you know how to make your site mobile friendly? My site looks weird when viewing from my iphone. I'm trying to find a theme or plugin that might be able to fix this problem. If you have any suggestions, please share. Cheers! gå ner i vikt lchf voyli.clicdi.se/music/g-ner-i-vikt-lchf.php
hur fungerar vårtmedel
(hur fungerar vårtmedel, 30. 1. 2021 10:01)
It's impressive that you are getting thoughts from this piece of writing as well as from our dialogue made at this time. hur fungerar vårtmedel enpro.clicdi.se/delicious-dishes/hur-fungerar-vrtmedel.php
hur smittar feber
(hur smittar feber, 30. 1. 2021 3:38)
whoah this weblog is excellent i love studying your articles. Keep up the great work! You know, many individuals are looking round for this information, you could aid them greatly. hur smittar feber hisur.clicdi.se/for-women/hur-smittar-feber.php
eos lip balm innehåll
(eos lip balm innehåll, 29. 1. 2021 20:27)
If you would like to get much from this article then you have to apply such strategies to your won blog. eos lip balm innehåll lota.clicdi.se/for-men/eos-lip-balm-innehll.php
glycolic face peel
(glycolic face peel, 28. 1. 2021 18:59)
Thank you a lot for sharing this with all people you actually understand what you're talking about! Bookmarked. Please additionally seek advice from my web site =). We will have a hyperlink alternate agreement among us glycolic face peel micsu.clicdi.se/travels/glycolic-face-peel.php
nivea skin firming lotion
(nivea skin firming lotion, 28. 1. 2021 6:26)
Great site you have here.. It's hard to find good quality writing like yours nowadays. I seriously appreciate individuals like you! Take care!! nivea skin firming lotion comho.clicdi.se/skin-care/nivea-skin-firming-lotion.php
hårförlängning pris frisör
(hårförlängning pris frisör, 27. 1. 2021 20:53)
Hello to all, how is all, I think every one is getting more from this web page, and your views are fastidious in favor of new people. hårförlängning pris frisör tipsg.clicdi.se/trends/hrfoerlaengning-pris-frisoer.php
online writing paper
(Anton, 22. 1. 2021 22:00)
It's very simple to find out any matter on net as compared to textbooks, as I
found this article at this web site.
https://syed.populiser.com/section-1/adnan-syed-innocent-essay:30
online writing paper
online writng paper
gГҐr man ner i vikt av diarre aperca.se
(aperca.se, 30. 10. 2020 18:18)
We stumbled over here coming from a different website and thought I might check things out. I like what I see so now i'm following you. Look forward to going over your web page for a second time. morme.aperca.se/map3.php gГҐr man ner i vikt av diarre
https://ufc257update.com/mcgregor-vs-poirier-rematch/
(UFC 257 Live Stream Online Free, 21. 1. 2021 21:37)
UFC 257 Live Stream
UFC 257 Live Stream Reddit
UFC 257 Live Stream Online
UFC 257 Live Stream Online Free
UFC 257 Live Reddit
UFC 257 Live Stream: McGregor vs Poirier Stream Free
UFC 257 Fight Live Stream On Free Tv
McGregor vs Poirier 2
McGregor vs Poirier 2 Live Reddit
McGregor vs Poirier 2 Live Stream
McGregor vs Poirier 2 Live Online
McGregor vs Poirier 2 Live Online Free
Poirier vs McGregor Live Stream
Poirier vs McGregor Live Stream Reddit
Poirier vs McGregor Live Stream Online
Dustin Poirier vs Conor McGregor Live Stream
Dustin Poirier vs Conor McGregor Live Online
Dustin Poirier vs Conor McGregor Live Stream Reddit
Dustin Poirier vs Conor McGregor Live Stream Online
McGregor vs Poirier Stream Free
https://ufc257update.com/
https://ufc257update.com/mcgregor-vs-poirier-live-stream/
https://ufc257update.com/mcgregor-and-poirier-are-ready-to-set-the-lightweight-division-on-fire-in-january/
https://ufc257update.com/mcgregor-vs-poirier-2/
https://ufc257update.com/mcgregor-vs-poirier-rematch/
https://ufc257update.com/ufc-257-mcgregor-is-returning-to-the-octagon-in-a-rematch-against-poirier/
persdap.se
(persdap.se, 30. 10. 2020 8:09)
Hello There. I found your blog using msn. This is an extremely well written article. I'll be sure to bookmark it and come back to read more of your useful information. Thanks for the post. I'll definitely return. persdap.se/map10.php lernberger stafsing conditioner
McGregor vs Poirier 2 Live Online
(UFC 257 Live Stream , 21. 1. 2021 20:38)
UFC 257 Live Stream
UFC 257 Live Stream Reddit
UFC 257 Live Stream Online
UFC 257 Live Stream Online Free
UFC 257 Live Reddit
UFC 257 Live Stream: McGregor vs Poirier Stream Free
UFC 257 Fight Live Stream On Free Tv
McGregor vs Poirier 2
McGregor vs Poirier 2 Live Reddit
McGregor vs Poirier 2 Live Stream
McGregor vs Poirier 2 Live Online
McGregor vs Poirier 2 Live Online Free
Poirier vs McGregor Live Stream
Poirier vs McGregor Live Stream Reddit
Poirier vs McGregor Live Stream Online
Dustin Poirier vs Conor McGregor Live Stream
Dustin Poirier vs Conor McGregor Live Online
Dustin Poirier vs Conor McGregor Live Stream Reddit
Dustin Poirier vs Conor McGregor Live Stream Online
McGregor vs Poirier Stream Free
https://ufc257s.com/
https://ufc257s.com/how-to-watch-conor-mcgregor-vs-dustin-poirier-2-live-stream-online-from-anywhere/
https://ufc257s.com/ufc-257-live-stream-reddit-free-online/
Poirier vs McGregor Live Stream Online
(Poirier vs McGregor Live Stream, 21. 1. 2021 19:29)
Poirier vs McGregor Live Stream
Poirier vs McGregor Live Stream Reddit
Poirier vs McGregor Live Stream Online
Dustin Poirier vs Conor McGregor Live Stream
Dustin Poirier vs Conor McGregor Live Online
Dustin Poirier vs Conor McGregor Live Stream Reddit
Dustin Poirier vs Conor McGregor Live Stream Online
McGregor vs Poirier Stream Free
https://ufc257update.com/
https://ufc257update.com/mcgregor-vs-poirier-live-stream/
https://ufc257update.com/mcgregor-and-poirier-are-ready-to-set-the-lightweight-division-on-fire-in-january/
https://ufc257update.com/mcgregor-vs-poirier-2/
https://ufc257update.com/mcgregor-vs-poirier-rematch/
https://ufc257update.com/ufc-257-mcgregor-is-returning-to-the-octagon-in-a-rematch-against-poirier/
Xevil 5.0 rozpoznať ReCaptcha-2 a ReCaptcha-3
(Natashuol56, 26. 12. 2020 18:31)
Absolutely NEW update of captchas recognition software "XRumer 19.0 + XEvil 5.0":
Captchas solving of Google (ReCaptcha-2 and ReCaptcha-3), Facebook, BitFinex, Microsoft, Mail.Ru, SolveMedia, Steam,
and more than 12000 another subtypes of captcha,
with highest precision (80..100%) and highest speed (100 img per second).
You can use XEvil 5.0 with any most popular SEO/SMM programms: iMacros, XRumer, SERP Parser, GSA SER, RankerX, ZennoPoster, Scrapebox, Senuke, FaucetCollector and more than 100 of other software.
Interested? You can find a lot of impessive videos about XEvil in YouTube.
Free XEvil Demo available.
See you later!
P.S. A Huge Discount -30% for XEvil full version until 15 Jan is AVAILABLE! :)
XEvil Net
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60
schampo för tjockt hår
(schampo för tjockt hår, 1. 2. 2021 6:19)