How many grams have 3 moles of c2h6?

Compare and contrast physical changes with chemical changes.

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 chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?