What's the empirical formula of 36.48% na 25.41% s 38.11% o

In 2002, the rare earth elements mine in mountain pass, california was closed because

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.

Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?