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State whether the following properties of zinc are chemical or physical: A. It reacts slowly with...

State whether the following properties of zinc are chemical or physical:

A. It reacts slowly with oxygen gas at elevated temperatures to form zinc oxide, ZnO.

B. When zinc granules are added to dilute sulfuric acid, hydrogen is given off and the metal dissolves.

C. Zinc melts at 420 degrees Celsius.

D. Zinc has a hardness on the Mohs scale of 2.5 and a density of 7.13g/cm³ at 25 degrees Celsius.

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