Fun
Nice eagle, count me in...
Sorry, I have an accent...
Isn't that what I said?
In 1982, the coinage changed from having 95% copper cents to the 97.5% zinc coated with copper. Some 1982's weigh 2.5 g (Zincolns) and some weigh...
Hey, keep trying
And how old are you?
Give it a couple of days.
Actually I recently gave my niece a half-penny (ha'penny) since she thought the line in the song "Please Put A Penny In The Old Man's Hat" was...
Forever
Didn't I see that on Youtube...
Do an experiment, dip a cent in vinegar and let it sit and dry. What color does it turn to?
Takes me back to the "good old days" when I was becoming acquainted with chemical terms. We had hexane on the shelf and also had petroleum ether...
Am I the only one that has this running in my head now? [MEDIA]
Kudos, very nice
Actually MS70 is just a catchy name. AFAIK, it is mostly potassium hydroxide.
Is that like Skelly A, B or C?
I just wonder how many people looked up soxhlet?
You can offer it here on CT.
Yep, sometimes "chemical perspective" doesn't cover all the possibilities of what might have happened.
Separate names with a comma.