At what chemical shift does the aldehyde H appear (in the 1H NMR of furfural)? Do you see disappearance of this peak in the 1H NMR of furoin? b) (1 point) The peaks corresponding to the Hs on the furan ring appear at chemical shifts (~7-8 ppm) that are typical for benzene Hs. Is this expected? Why/why not? c) (1 point) What resonances do you see in the 1H NMR of furoin that are not in the 1H NMR of furaldehyde? What (i. e. which Hs) can these peaks be attributed to? 3) (

The picture represents the process that produces most of the energy used by living organisms on earth. which process is represented in the picture? a) the magnetic attraction between two hydrogen nuclei. b) the fusion of hydrogen nuclei to produce a helium nucleus in the core of the sun. c) the fission of hydrogen nuclei to produce a helium nucleus in the core of the sun. d) the chemical reaction between hydrogen nuclei to produce a helium nucleus in earth's atmosphere.

What is a difference between a mixture of elements and a mixture of compounds

What conclusion can you draw from this experiment about the components of the black ink?