The fluoride rinse in dental offices usually contains sodium fluoride. Sodium fluoride can be prepared from the reaction between sodium metal and fluorine gas. Which properly represents the balanced chemical equation for this reaction? Na(s) + F2(g) → NaF2(s)
Na(s) + F(g) → NaF(s)
7Na(s) + F(g) → Na7F(s)
2Na(s) + F2(g) → 2Na2F(s)
2Na(s) + F2(g) → 2NaF(s)
Why is it important to understand this equation? What do you think could happen if this is incorrect?

the answer is 75.0%.

air

in a tire you fill a tire with air

then a couple days later you check the air pressure in the tire

hope this mark me brainliest

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.