Determine the electrical work required to produce one mole of hydrogen in the electrolysis of liquid water at 298 k and 1 atm. the chemical reaction is-
h2o(l) = h2 (g) + 0.5 o2 (g)
data (at 298 k and 1 atm): delta h= 286 kj for this reaction, sh2o =70 j/k , sh2o= 131 j/k and so2= 205 j/k

Maria wants to determine which type of disinfectant kills the most bacteria. which of the following is the best way for maria to determine this? a. ask ten different companies that make disinfectants which type is best. b. put the same amount and species of bacteria on ten identical plates, and add ten different kinds of disinfectant to each plate. c. interview ten different people to determine which type of disinfectant they prefer. d. put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.

2. how is heavy water different from normal water

In a water molecule, hydrogen and oxygen are held together by a(an) bond. a) double covalent b) ionic c) nonpolar covalent d) hydrogen e) polar covalent