Question

What happens to pre- and post-1982 pennies in a Bunsen Burner flame?

Answer 1

Post-1982 pennies are mostly zinc. ... We heat the pennies in the flame of a Bunsen burner. As we heat the silver penny the atoms move. The zinc atoms move in between the copper atoms

hope it helps you....

have a great day ahead.....

Answer 2

$\huge\fbox\green{♡Answer}$

A post-1982 penny has a mass of 2.5 grams, while the pre- 1982 pennies have a mass of 3.1 grams. The older copper pennies can be heated over a Bunsen burner flame without melting. Zinc melts at a much lower tempera- ture than copper. The melting point of zinc is 420˚C, while that of copper is 1083˚C.