What is the percent by mass of sodium (na) in sodium chloride?

How much heat is released upon converting one mole of steam (18.0 g) from 100.0 ∘c to water at 25.0 ∘c? show work and constants, trying to figure out how it works. only given the heat capacity for steam and water so try to only use that

Why are pipes bursting in the in extremely cold weather?

How do you convert 4 mmol of bromobenzene to ml?