consider the following salts NH4CL, PBbSO4, NaHCO3, C4(NO3)2 and ZnCO3 . Which doesn't readily dissolve in water

High-energy and unstable.

Yeah, but what are you trying to ask?

Atp, shorthand for adenosine triphosphate, is the standard molecule for cellular enger in the human body. all motion and metabolic  processes  within the body begins with energy that is released from  atp, as its phosphate bonds are broken in cells through a  process  called hydrolysis.

Answer(d) unstable compounds that convert to acetals in the presence of alcohol and an acid; (b) semiacetals produced by alcohol subtraction from ketone;