Ejercicios de estequiometría. Por favor ayúdenme :(

In saturated organic compounds, all the bonds between carbon atoms are called?

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)

What is the mass of 0.46 mol of mgcl2