Amixture consisting of 30 ml of waste and 270 ml of seeded dilution waster has an initial do of 8.55 mg/l; after five days, it has a final do of 2.40 mg/l. another bottle containing just the seeded dilution water has an initial do of 8.75 mg/l and a final do of 8.53 mg/l. find the five-day bod of the waste.

d.) circle motion requires a force to give it a centripetal acceleration.

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.