What is the minimum energy level n of an electron in a a hydrogen atom if 0.865 eV of energy can ionize it

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What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5

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.