Heating cinnabar in the presence of oxygen gas produces elemental mercury and new compounds called sulfur oxides. Is this a physical or a chemical change?

Question

Heating cinnabar in the presence of oxygen gas produces elemental mercury and new compounds called sulfur oxides. Is this a physical or a chemical change?

1. Physical change
2. Chemical Change

Answer 1

This is a CHEMICAL change. If you want to understand why it isn't a physical change, you should read the chapter on chemical and physical chanages.