Identify the double displacement reaction. 3Pb + 2h 3PO 4 ⟶ 3H 2 + Pb 3(PO 4) 2 2NO 2 ⟶ 2O 2 + N 2 2NaBr + Ca(OH) 2 ⟶ CaBr 2 + 2NaOH 2NH 3 + H 2SO 4 ⟶ (NH 4) 2SO 4

answer: the primary difference between a hypothesis and a theory is that b hypothesis is falsifiable, but a theory has been proven to be correct. theory is an explanation of something that is happening but hypothesis is a guess of something that can happen

explanation:

your answer would be “dry”

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.