How many kilojoules of heat would be released if 9 moles of hydrogen are used in this reaction N2(g)+3H2(g)->2NH3(g)

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)

What is the mass of 0.46 mil of mgcl2