What part of the amino acid varies from one amino acid to another

One of the few xenon compounds that form is cesium xenon heptafluoride (csxef7). how many moles of csxef7 can be produced from the reaction of 13.0 mol cesium fluoride with 12.5 mol xenon hexafluoride? csf(s) + xef6(s) csxef7(s)

If i can still dissolve more sugar into the solution at a certain temperature what would i call that solution

What is the area in square meters of 448 g ai foil that has a thickness of 23921 nm? the density is 2.70 g/cm