Thinking about the position of the signal due to hydrogen in the NMR spectra of the following species, rank them in order of the frequency required to flip the spin of the H atom from lowest to highest: a. H-H
b. H-F
c. H-Br
d. H-Li
e. H-C

Predict whether the changes in enthalpy, entropy, and free energy will be positive or negative for the boiling of water, and explain your predictions. how does temperature affect the spontaneity of this process?

What is a metal replacement reaction

Ammonium perchlorate nh4clo4 is the solid rocket fuel used by the u.s. space shuttle. it reacts with itself to produce nitrogen gas n2 , chlorine gas cl2 , oxygen gas o2 , water h2o , and a great deal of energy. what mass of nitrogen gas is produced by the reaction of 2.1g of ammonium perchlorate?