Activity 3 1-19-11

1.Show crystal structures for NaCl (sodium chloride) and CaCO3 (calcium carbonate). What is the melting point for these two materials?

NaCl (sodium chloride)Here are two pictures i found for the crystalalized structure of sodium chloride.


Its melting point is 801 degrees C or 1474 degrees F
CaCO3 (calcium carbonate).
Here is a picture of the crystalized structure of calcium carbonate.

The melting point for this is 825 degrees C. (Calcite)
1339 degrees C (aragonite)
1115K (842 degrees C or 1548 degrees F)