What is the ph of a 2.4 m solution of hclo4

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

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?

List and describe the neurological effects of the vocs and other air pollutants, as described by dr. theo colborn