A visible reduction - microscale reduction of copper oxide

[@PeterPete]

I'm trying to figure out before the cut in the video whether copper metal was produced in the glass pipette? All other videos on YT I've seen carrying out same demo only produce a brown powder (which people call copper) but copper in a powder form does not conduct electricity! So I'm wondering whether some further steps were carried out 'off camera' to produce a 'lump' that would conduct electricity?

[@khiowboonheng8974]

Practical skills assessment video are as practical for chemical tests,testing for PH,compound and the likes as chemical testing done in the lab.

[@AntalMadincea]

It would be interesting if a similar method could be used to regenerate traces on corroded PCBs.

[@johncourtneidge]

Very nice, thank-you! The Nuffield set used to have a two syringe arrangement for this. I'd like to get involved in this work. My related page is Chemistry: What, Why, How. Please be in touch. Thank-you!

[@ah13.]

yes i am the 3rd comment after five years

[@Hidudes112]

Who did this for class? Lol

[@shanewhite352]

There is a very easy method, but I won't tell you

[@kamalezzeghoudy4262]

Yes you are right me too there a way without using any kind of chemicals this way its benn used 3000 years a go

[@leeroy14r60]

@@kamalezzeghoudy4262 Thank Gd you edited this, and fixed your grammar.