How much energy is absorbed if 200 g of water at 60 C turns into steam at 140 C? You will need to know:
specific heat of water = 4.2 J/g*C
specific heat of steam = 2.1 J/g*C
heat of vaporization = 2,256 J

An exothermic reaction is conducted in an insulated calorimeter filled with water. the calorimeter is then sealed so that there is no heat exchanged between the contents of the container and the surrounding air. which of the following statements is true about the reaction?

Chromosome 17 is made of over million base pairs.

How many moles are in 43.9 l of oxygen