You are an archaeologist who uncovers a new site of early human activity. Currently, there is evidence of humans living in
this area from 8000 to 22,500 years ago. A few bones are found
at the site including a human skull. A current skull contains a
carbon-14 count of 10,000. The fossil skull contains a carbon-14
count of 312.5. How does your find affect knowledge of early
humans?
A. This find shows that humans arrived there 28,500 years earlier than
previously thought.
B. This find is consist
ent with what we already knew.
C. This find shows that humans arrived there are 6000 years earlier than previously thought.
D. The fossil is too old to accurately use carbon dating on.

the answer is either b or c

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.