Awesome teachers
Teachers have been getting a right kicking recently and it's not fair. So, let's hear it for the teachers who've inspired you, made you laugh, or helped you to make massive explosions in the chemistry lab. (Thanks to Godwin's Lawyer for the suggestion)
( , Thu 17 Mar 2011, 11:18)
Teachers have been getting a right kicking recently and it's not fair. So, let's hear it for the teachers who've inspired you, made you laugh, or helped you to make massive explosions in the chemistry lab. (Thanks to Godwin's Lawyer for the suggestion)
( , Thu 17 Mar 2011, 11:18)
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At a guess, if you put the mixed powders of permanganate and lead together on a piece of glass and heat them enough,
an oxidation reaction will start up, in which the metallic lead will turn to lead oxides and a lot of heat will be given out; enough to melt the glass, decompose the remaining permanganate and burn the oxygen that's released.
( , Wed 23 Mar 2011, 0:03, 2 replies)
an oxidation reaction will start up, in which the metallic lead will turn to lead oxides and a lot of heat will be given out; enough to melt the glass, decompose the remaining permanganate and burn the oxygen that's released.
( , Wed 23 Mar 2011, 0:03, 2 replies)
That sounds reasonable - easy to forget how reactive lead can be. May have to try this weekend.
( , Wed 23 Mar 2011, 12:17, closed)
That's about the size of it.
Heat the lead nice and hot (not so hot it melts though), heat the potassium permanganate so it gives off oxygen, eventually the lead oxidises giving off enough heat that it starts to split up the silica in the glass.
( , Wed 23 Mar 2011, 17:21, closed)
Heat the lead nice and hot (not so hot it melts though), heat the potassium permanganate so it gives off oxygen, eventually the lead oxidises giving off enough heat that it starts to split up the silica in the glass.
( , Wed 23 Mar 2011, 17:21, closed)
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