HELP? PLEASE ANSWER WITH EXPLANATION. Using a table of standard reduction potentials, calculate the minimum voltage needed to electrolyze potassium chloride into its elements (K(s) and Cl2(g))

Calculate the molarity of 48.0 ml of 6.00 m h2so4 diluted to 0.250 l .

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 the symbol (–hfus) indicate in a phase change?