2H, S(g) + 302 (9) --> 2802(g) + 2H2O(g) what's the reaction

Theoretically, which metal should be the most reactive? hydrogen lithium francium fluorine

Given the following equation: 2a1 + 3mgcl2 --> 2alcl3 + 3mg how many moles of aluminum chloride are produced from 2.5 moles of magnesium chloride?

Witch two conditions can limit the usefulness of the kinetic molecular theory in describing gas behavior?