Which element at stp is a liquid that conducts electricity well?

At 450 mm hg a gas has a volume of 760 l, what is its volume at standard pressure

In the space, show a correct numerical setup for calculating the number of moles of co2 present in 11 grams of co2

The chemical equation below shows the reaction of sodium (na) and chlorine (cl) to form sodium chloride (nacl). 2na + cl2 → 2nacl in this equation, which of the following is a reactant? i. sodium ii. chlorine iii. sodium chloride