Is this- alpha, beta, or gamma?

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)

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false

One similarity and one difference between an element and a mixture of elements