For the following metal and non-metal combination reaction you have 3 moles of na. how many moles of cl2 would you need to add to have stoichiometrically equivalent amounts of na and cl2?

2na(s) + cl2(g) --> 2nacl(s)

The molar ratio of Na : Cl₂ is 2:1
Moles of Na present = 3
2/1 = 3/x
x = 1.5
1.5 moles of Cl₂ needed to have stoichometrically equivalent amount

If the water vapor content stays the same and the temperature drops, then the relative humidity increases. its vise versa.if the water vapor content stats the same and the temperature rises, the relative humidity decreases. so, yes, i'd say that temperature and humidity have a strong relationship.