Help, I thought I got an answer to this, but I feel like it's wrong based on the theoretical Molar Enthalpy of Napahthalene given: -5155.9kJ/mol. What would be the steps in solving this?

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.

What does a numerical subscript following an element in a chemical formula mean?

Type the letter that represents the correct location for each particle type below. the neutron is found at __ the electron is found at __ the proton is found at __