According to the following reaction, how many grams of chlorine gas are required for the complete reaction of 25.5 grams of iron? iron (s) + chlorine (g) iron(III) chloride (s)
grams chlorine gas

48.4 g of will be produced from 25.5 g of iron

Explanation:

To calculate the moles :

The balanced chemical reaction is:

According to stoichiometry :

2 moles of require  = 3 moles of

Thus 0.455 moles of will require=  of

Mass of

Thus 48.4 g of will be produced from 25.5 g of iron

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.