Proofread the following text and correct the three subject-verb disagreements.

allegedly recovered from the legendary king solomon’s mines, the uncut, rough stone was acquired in 1544 by the scandalous de luca family. gifted as part of a dowry in 1612, the fate of the diamond, along with several other high profile gems, were unknown after the franco-spanish war of 1635, before it mysteriously reappeared over three centuries later. sold last year to the moretti brothers jewellers for just over £22 million, neither time nor conflict have dimmed its brilliance. indeed, the twin eighty-year-old brothers suggests that the value of the now cut and polished 90 carat diamond has already increased by at least 50%. it will be on display for four weeks only.

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.