Assertion: pure zinc | /r/HasProperty | zn
Facets:
Source sentences:
text: When exposed to the atmosphere, the pure zinc (Zn) reacts with oxygen (O 2 ) to form zinc oxide (ZnO), which further reacts with carbon dioxide (CO 2 ) to form zinc carbonate (ZnCO 3 ), a usually dull grey, fairly strong material that protects the steel underneath from further corrosion in many circumstances.