Objective knowledge check questions a chemist fills a reaction vessel with 4.64 atm nitrogen (n) gas, 6.79 atm hydrogen (h) gas, and 8.54 stm ammonia (nh) gas at a temperature of 25.0°c under these conditions, calculate the reaction free energy ag for the following chemical reaction n, (b) + 3h2(g) + 2nh, (8) use the thermodynamic information in the aleks data tab. round your answer to the nearest kilojoule, x 5 ? dont know

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.