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
Dobrý deň, ak to čítate, moja reklama funguje!
Ponúkam zoznamy adries na fórach, knihách hostí, formulároch spätnej väzby a oveľa viac.
Kvalitný chod Vašej webstránky, reklamy alebo ponuky!
Zvýšte návštevnosť a pokrytie publika mojím telegramom pre komunikáciu @bgmany
Forbes News Today
(RaymondElarp, 25. 2. 2024 19:48)
Forbes News Today is a global media company, focusing on business, investing, technology, entrepreneurship, leadership, and lifestyle
https://www.forbesnewstoday.com/
Predaj s 50% zľavou GSA SEARCH ENGINE RANKER
(BryanHaw, 25. 2. 2024 16:52)
Zdravím, budem stručný. Predáme aktivačné kľúče pre program, aby sme zvýšili hodnotenie vyhľadávania a vytvorili hmotnosť odkazov. Na oficiálnych stránkach to stojí $130, máme $65, rozhodnúť rýchlo, zatiaľ čo tam je https://en.xrumerbasee.ru/.
V predaji sú aj osobné súkromné základne pre XRumer a čerstvé základne pre GSA a XRumer.
Keďže to čítate, znamená to, že (xrumer a moja základňa kontaktov na webe) funguje a prevádzka plynie, veľa šťastia.
BITCOIN MONEY SEARCH SOFTWARE
(Lamalaurl, 24. 2. 2024 4:09)
I want to show you one exclusive program called (BTC PROFIT SEARCH AND MINING PHRASES), which can make you a rich man!
This program searches for Bitcoin wallets with a balance, and tries to find a secret phrase for them to get full access to the lost wallet!
Run the program and wait, and in order to increase your chances, install the program on all computers available to you, at work, with your friends, with your relatives, you can also ask your classmates to use the program, so your chances will increase tenfold!
Remember the more computers you use, the higher your chances of getting the treasure!
DOWNLOAD FOR FREE
Telegram:
https://t.me/btc_profit_search
thank you very much
(Esbekap, 23. 2. 2024 19:18)Thanks, I've been looking for this for a long time
Exploring the Hypnotic of Dating: Connections, Nurturing, and Determining
(Cyharlesvutle, 23. 2. 2024 14:41)
Dating is a go abroad that encompasses the spell of good samaritan ally, live increase, and far-out discoveries. It is a dispose of to which individuals search maudlin possibilities, getting to recall each other on a deeper level. Dating allows people to share experiences, exchange ideas, and create consequential connections.
https://erhe.me/tags/gay-anal-cum/
In the empire of dating, whole encounters a diverse range of emotions. There's the exhilaration of convention someone trendy, the foreknowledge of a in the first place escort, and the titillation of discovering common interests and shared values. It is a continually of vulnerability and self-discovery as individuals open themselves up to the feasibility of inclination and companionship.
https://erhe.me/tags/ass-fucking/
Effective communication lies at the heart of dating, facilitating accord and connection between two people. It involves effective listening, ethical declaration, and empathy, creating a range representing veritable dialogue. Including communication, individuals can tour their compatibility, transfer thoughts and dreams, and assemble a fundamental of trust.
Men Dating Men: Celebrating Love and Pull
(AlbertCic, 22. 2. 2024 12:49)
Men dating men sample tenderness, union, and the belle of relationships in their own unmatched way.
https://zeenite.com/videos/30342/watching-porn-with-step-sister/
In a everyone that embraces distinctiveness and inclusivity, same-sex relationships suffer with develop their place. Men who date men sail the joys and challenges of building substantial connections based on authenticity and mutual understanding. They celebrate enjoyment while overcoming societal expectations, stereotypes, and discrimination.
https://gay0day.com/tags/amateur/
Communication and heartfelt intimacy pleasure a momentous task in their relationships, fostering assurance and deepening their bond. As institute progresses towards justice, it is important to recognize and regard the angel shared between men dating men, embracing their unique experiences and contributions to the tapestry of anthropoid connections.
SEARCHING FOR LOST BITCOIN WALLETS
(Lamalaurl, 22. 2. 2024 5:17)
I want to show you one exclusive program called (BTC PROFIT SEARCH AND MINING PHRASES), which can make you a rich man!
This program searches for Bitcoin wallets with a balance, and tries to find a secret phrase for them to get full access to the lost wallet!
Run the program and wait, and in order to increase your chances, install the program on all computers available to you, at work, with your friends, with your relatives, you can also ask your classmates to use the program, so your chances will increase tenfold!
Remember the more computers you use, the higher your chances of getting the treasure!
DOWNLOAD FOR FREE
Telegram:
https://t.me/btc_profit_search
Jackpot Bet Online
(Raymondfed, 16. 2. 2024 18:32)
We bring you latest Gambling News, Casino Bonuses and offers from Top Operators, Online Casino Slots Tips, Sports Betting Tips, odds etc.
https://www.jackpotbetonline.com/
BTC PROFIT SEARCH AND MINING PHRASES
(Lamalaurl, 16. 2. 2024 12:43)
I want to show you one exclusive program called (BTC PROFIT SEARCH AND MINING PHRASES), which can make you a rich man!
This program searches for Bitcoin wallets with a balance, and tries to find a secret phrase for them to get full access to the lost wallet!
Run the program and wait, and in order to increase your chances, install the program on all computers available to you, at work, with your friends, with your relatives, you can also ask your classmates to use the program, so your chances will increase tenfold!
Remember the more computers you use, the higher your chances of getting the treasure!
DOWNLOAD FOR FREE
Telegram:
https://t.me/btc_profit_search
Free casino bonuses!
(BOSTow, 16. 2. 2024 11:56)Free casino bonuses! https://joycasino-gc7.ru
BITCOIN CRACKING SOFTWARE
(Lamalaurl, 16. 2. 2024 11:36)
I want to show you one exclusive program called (BTC PROFIT SEARCH AND MINING PHRASES), which can make you a rich man!
This program searches for Bitcoin wallets with a balance, and tries to find a secret phrase for them to get full access to the lost wallet!
Run the program and wait, and in order to increase your chances, install the program on all computers available to you, at work, with your friends, with your relatives, you can also ask your classmates to use the program, so your chances will increase tenfold!
Remember the more computers you use, the higher your chances of getting the treasure!
DOWNLOAD FOR FREE
Telegram:
https://t.me/btc_profit_search
BITCOIN MONEY SEARCH SOFTWARE
(Lamalaurl, 16. 2. 2024 4:32)
I want to show you one exclusive program called (BTC PROFIT SEARCH AND MINING PHRASES), which can make you a rich man!
This program searches for Bitcoin wallets with a balance, and tries to find a secret phrase for them to get full access to the lost wallet!
Run the program and wait, and in order to increase your chances, install the program on all computers available to you, at work, with your friends, with your relatives, you can also ask your classmates to use the program, so your chances will increase tenfold!
Remember the more computers you use, the higher your chances of getting the treasure!
DOWNLOAD FOR FREE
Telegram:
https://t.me/btc_profit_search
SEARCHING FOR LOST BITCOIN WALLETS
(Lamalaurl, 15. 2. 2024 20:07)
I want to show you one exclusive program called (BTC PROFIT SEARCH AND MINING PHRASES), which can make you a rich man!
This program searches for Bitcoin wallets with a balance, and tries to find a secret phrase for them to get full access to the lost wallet!
Run the program and wait, and in order to increase your chances, install the program on all computers available to you, at work, with your friends, with your relatives, you can also ask your classmates to use the program, so your chances will increase tenfold!
Remember the more computers you use, the higher your chances of getting the treasure!
DOWNLOAD FOR FREE
Telegram:
https://t.me/btc_profit_search
BITCOIN MONEY SEARCH SOFTWARE
(Lamalaurl, 15. 2. 2024 12:53)
I want to show you one exclusive program called (BTC PROFIT SEARCH AND MINING PHRASES), which can make you a rich man!
This program searches for Bitcoin wallets with a balance, and tries to find a secret phrase for them to get full access to the lost wallet!
Run the program and wait, and in order to increase your chances, install the program on all computers available to you, at work, with your friends, with your relatives, you can also ask your classmates to use the program, so your chances will increase tenfold!
Remember the more computers you use, the higher your chances of getting the treasure!
DOWNLOAD FOR FREE
Telegram:
https://t.me/btc_profit_search
SEARCHING FOR LOST BITCOIN WALLETS
(Lamalaurl, 15. 2. 2024 1:30)
I want to show you one exclusive program called (BTC PROFIT SEARCH AND MINING PHRASES), which can make you a rich man!
This program searches for Bitcoin wallets with a balance, and tries to find a secret phrase for them to get full access to the lost wallet!
Run the program and wait, and in order to increase your chances, install the program on all computers available to you, at work, with your friends, with your relatives, you can also ask your classmates to use the program, so your chances will increase tenfold!
Remember the more computers you use, the higher your chances of getting the treasure!
DOWNLOAD FOR FREE
Telegram:
https://t.me/btc_profit_search
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
Efektívna reklama pre vás
(Richardducky, 26. 2. 2024 12:12)