Oxidation of Copper

[zimtower]

NO2 is deadly, I hope he was using a fume duct.

[toothpick93]

wouldnt this be making copper (II) nitrate and Zinc nitrate?

[steadfast1984]

looks like your using a penny that is zinc core and only plated with copper

[3232mackie]

wow that was cool!!!!!!

[graceman25]

yay canada

[mewrox99]

Wow he uses 50% nitric with no gloves and goggles and produces a significant amount of NO2 in a room full of people. Not my idea of good lab safety

[Crystal0mask]

@mewrox99 He seems to wear the goggles to protect his hands.

[FortNikitaBullion]

Except the penny isn't copper, it's mostly steel.

[vmelkon]

@FortNikitaBullion Canadian penny in 1996 and before was 98% copper and the rest is tin. From 1997 to 2000, it is copper coated zinc. 2001 until now, it is copper coated steel.

[eileenmarie89]

That poor penny!What did he ever do to that guy?

[pyrocrazyUSA]

the penny doesn't have that much copper, maybe 5%

[elpis090]

I didn't understand why the bubbles are coming out of the coin. Can someone tell me why?? Thank you :)

[onlyCreativity]

@elpis090 ehh... OXYGEN??!

[elpis090]

It could be! I'll ask my chemistry teacher next week!

[mewrox99]

@onlyCreativity

The gas is nitrogen dioxide

[jpthecreaton]

@onlyCreativity NO2= nitrogen dioxide(damn near everything nitric acid will react with will yield (product + NO2))

[TonkatrainHONKHONK]

what is that brown gas?

[JaksProductions]

@TonkatrainHONKHONK de same thing dat comes when u Sh&% lol

[Dantherine]

the brown gas is dinitrogen tetroxide- N2O4 as shown on 2:35

it very toxic but it makes a great rocket fuel.

that gas also makes that brown hazy colour you see in cities especially during the summer because of pollution.

[antiswattt2]

you sure its not just NO2?? :S Nitrogen Dioxide

[dqk007]

what is that brown gas?

[jillydiane132]

what is the brown gas?

[jillydiane132]

interesting :)

[lonica3]

What does he add to solution to slow down the reaction?

[EPICT0ASTER]

water

[ritualize]

Distilled water, it dilutes the acid, slowing the reaction down.

[darksideofthebrick13]

oxygen di-nitrate. N2O

[11to]

i think its prouducing NO2!

[waskaman94]

it is

[pyropakman]

Yep!

[Crystal0mask]

@11to Yup XD, thats the brown gas.

[dogg502]

NOOOOOOOOOOOOOO

[v3user810]

Why I can't see the red-brown nitrogen Dioxide

[molceonly]

keep watching dude

[pyropakman]

Bubbles disperse too quickly. If he added more copper and had a beaker over the reaction, you'd probably be able to see it.

[CommanderHulio]

Its Beatiful

0-0

[Pagweb]

This is illegal

[fazrocs111]

what? chemistry?

[Pagweb]

The guy is destroying the government's money.

[paleoman1999]

Hell Obama's been doing it why not him!

[solojam]

pennies ain't copper anymore, they made of steel kids, the government dont want you having anything worth of value

[simontimon2]

Canadian pennies make after 1997 are only coated with copper the rest is zinc.

[DarkRain9000]

I wish he was my lecture professor. At least you are seeing what you are learning in action instead of being read out loud too you...

[24101984GTS]

That penny was passing gas,farting in the bathtub.Or,maybe it was Queen Elizabeth...

[draggt03]

didnt this teacher get fired?

[1SasukeBoy]

HEY!! I'm American

[tm31210]

Have you checked your copper change? They stopped using copper.Got a magnet anyone!

[draggt03]

hmmm mine are still copper. and have zinc in the middle of them

[TaurenGoMOOOO]

long live the queen haha

[sophers222]

here here

[bitrex]

Now just collect that brown gas, get yourself some hydrazine, and start your own rocket program!

[MediaNexus]

10,000th view. :)

[guylookin4fun06]

Eh, should have brought an American Penny. Tallyhoo Elizabeth! Classic.

[Cypherson]

Cuz redox isn't REALLY that... colorful... gotta get interest somehow.

[Gigano1986]

Because it makes the demo funny. Humour is always a nice functional method of getting people's attention.

Besides, why do you care about the vocabulary this man utilises?

[nos3020919]

this should be done in fume cupboard

[ctennis21]

yeah. not good for the gas to be expelled into a room.

[SR0Penne0Brillo]

well, americans eh?

[Tykeronia]

i thought he was canadian? pretty sure he is...

[SR0Penne0Brillo]

01110100 01101000 01100001 01101110 01101011 01110011 00100000 01100110 01101111 01110010 00100000 01110000 01110010 01101111 01110110 01101001 01101110 01100111 00100000 01101101 01111001 00100000 01110000 01101111 01101001 01101110 01110100 00100000 01111001 01101111 01110101 00100000 01110100 01101111 01110011 01110011 01100101 01110010

[SR0Penne0Brillo]

are you on crack?

[conflict1991]

translation = "thanks for proving my point you tosser"

[SR0Penne0Brillo]

well on his page it looked like he liked code and rather than upset people wanting to look at the oxidation of copper and not our bickering, it may help to be in binary

[BitzFit]

01101000 01100001 01101000 01100001 00100000 01110100 01101000 01100001 01110100 01110011 00100000 01100011 01101111 01101111 01101100

[panoramix1987]

long live the queen... :))

[JEREMYHEENEY]

i thought i was gona see sumthing go boooom!

[omnipotentfish]

i'm kinda new to chemistry and i don't get why reduction is a gain of electrons and oxidation is a loss of electros

and if i burn wood for example that means that the wood is being oxidised?

[Gigano1986]

Heat of the fire causes the wood to fall apart due to thermolysis and the gasses that are created in that process are the ones that actually burn.

[chester73]

combustion is a redox reaction. Oxygen goes from 0 to -2 and the carbon also changes. as for your other question, its reduction because the oxidation number decreases.

[ThePHxyc]

i would really enjoy having such a chemic teacher <3