It's no myth, just call us Lith: Converting Copper Lab

Makena G.
Nina G.
Nicolette E
Dr. Forman
Chemistry

1)
a. As we heated the copper we noticed the coppper became darker, and it formed a solid which was easily breakable.
b. Yes, the copper atoms did remain crucible because we were very careful when moving the crucible form the hot plate to the table with our tongs.

2)
a. The changes we observed were chemical changes.
b. The observational evidence that led us to that conclusion was that it turned into a solid due to the fact that the oxygen formed into a solid as the result of combining with the copper.

Started amount of copper: 18.30 g
Ending amount of copper: 18.31 g

RESULT: Copper oxide weighs a bit more than copper itself.