Assertion: pure zinc | /r/CapableOf | react with oxygen
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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.