X-ray crystallography is used to see the structure of molecules. scientists have used this technique to find the structure of cholesterol, an important biological molecule.
knowledge of the structure of cholesterol is because it may affect
a.) how cholesterol works in the body.
b.) the amount of cholesterol that is considered healthy.
c.) previous ideas about which foods contain cholesterol.
d.) previous explanations of how cholesterol works in the body.

If a polyatomic ionic compound has gained two hydrogen ions, then how does its name begin?

Sulfuric acid is a polyprotic acid. write balanced chemical equations for the sequence of reactions that sulfuric acid can undergo when it's dissolved in water.

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.