A quantity of 2.00 × 102 mL of 0.856 M HCl is mixed with 2.00 × 102 mL of 0.428 M Ba(OH)2 in a constant-pressure calorimeter of negligible heat capacity. The initial temperature of the HCl and Ba(OH)2 solutions is the same at 21.58°C. For the process below, the heat of neutralization is −56.2 kJ/mol. What is the final temperature of the mixed solutions?

Explanation :

Electric current is the flow of electric charge per unit time.The electric current passes through conductors. Conductors have free electrons. The number of free electrons is responsible for electric current.

Metals are conductors. So, they will conduct electricity. Sulfur and Selenium are non metals. Antimony is a metalloid and only tin is a metal.

Out of given elements, Tin (Sn) will carry electric current easily.