What is a siberian wood frogs habitat? pls

Stage in which a star’s outer layers have started to cool and grow outward?

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.

For the reaction shown, find the limiting reactant for each of the following initial amounts of reactants. 4al(s)+3o2(g)→2al2o3(s) a) 1 molal, 1 mol o2 b) 4 molal, 2.6 mol o2 c) 16 molal, 13 mol o2 d) 7.4 molal, 6.5 mol o2