Given the reaction: 2Na + 2H20 - 2NaOH + H2
How many moles of Na are needed to produce exactly 5.6 liters of He measured at STP?
A 1.0
B 2.0
C. 0.25
D. 0.50

Please try to give an explanation if you can

true

hope that

chemistry sucks a**

explanation:

the seeing the electronic configuration we can say that the element is fluorine.

fluorine is the most electronegative element in the periodic table.

but by only seeing the configuration we cannot say about its reactivity because we don't know if its configuration after excitation or by addition of electrons.

but if not then, it is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. as the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine.