1. Describe changes you observed as you heated the copper.
As we heated the copper it turned black and brown, and it became more compact.
Did the copper atoms remain in the crucible? Explain, using evidence from your observations.
b. The copper atoms did not remain because they oxidized and when the copper goes into the air and there is a color change.
2.Were the changes you observed physical changes or chemical changes?
2. a. Chemical change
What observational evidence leads you to that conclusion
b.The permanent change in color
3. How did the mass of the crucible contents change after you heated the copper
A. It becomes .04 grams more
Explain why the mass of the crucible contents changed in that manner
B. as the copper becomes oxidized the copper starts to weight more.
Analyze aggregated data
The average for the whole class was .06 grams gained. People got different types percent gained because maybe some people didn't but exactly 1g, so they might have put 1.02 grams or 1.4 grams.
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