Chemistry, 04.05.2021 01:00 dhcuajbfrhcyx
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.
Answers: 1
Chemistry, 22.06.2019 02:50
Using a value of ksp = 1.8 x 10-2 for the reaction pbcl2 pb+2(aq) + 2cl -(aq). if the value of ksp was determined to be only 1.2 x 10-2: too much solid has dissolved. additional precipitate is forming. the solution is unsaturated. the ions are now combining to reduce their concentrations.
Answers: 3
Chemistry, 22.06.2019 05:50
According to coulomb's law, how would the electrical force between particles change if the product of their electrical charge increased?
Answers: 1
Chemistry, 22.06.2019 16:50
What is conserved in the reaction shown below? h2(g) + cl2 (g) --> 2hcl(g)a. mass onlyb. mass and moles onlyc. mass, moles, and molecules onlyd. mass, moles, molecules, and volume
Answers: 2
You are an archaeologist who uncovers a new site of early
human activity. Currently, there is evid...
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