The answer is
Ingredients
Answer:
Solid
Explanation:
Diphenylamine has a melting point of 127.4 F or 53 C so at room temperature ~70 F or 21 C its a solid.
Zn + O2 = ZnO
Mg + O2 = MgO
Cu + O2 = CuO
Al + O2 = Al2O3
A
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