Chemistry, 02.09.2019 15:00 jose477

Molecules in all organisms are composed in part of radioactive carbon-14. which statement best explains the presence of carbon-14 in organisms?
a. the radioactive isotope reacts in the same way as stable isotopes in the nuclear reactions in the body.
b. the radioactive isotope reacts in the same way as stable isotopes in the chemical reactions in the body.
c. the radioactive isotope reacts faster than stable isotopes in the nuclear reactions in the body.
d. the radioactive isotope reacts faster than stable isotopes in the chemical reactions in the body.

Answers: 1

Show answers

Another question on Chemistry

Chemistry, 22.06.2019 05:30

Which of the following two events occur to create a sea breeze? select all that apply. warm air rises on the ocean and moves toward the land to cool warm air rises on land and moves toward the ocean to cool cool air moves from the ocean to be warmed by the land cool air moves from the land to be warmed by the ocean

Answers: 3

Answer

Chemistry, 22.06.2019 12:30

What human activity increases beach erosion?

Answers: 2

Answer

Chemistry, 22.06.2019 21:00

Which answer tells the reason the earth’s climate is getting warmer? too many animals are becoming extinct. large glaciers are melting in antarctica. the earth is moving closer to the sun. driving cars gives off gases that trap heat in the atmosphere.

Answers: 1

Answer

Chemistry, 22.06.2019 21:40

Tooth enamel consists mainly of the mineral calcium hydroxyapatite, ca_10(po_4)_6(oh)_2. trace elements in teeth of archaeological specimens provide anthropologist with clues about diet and diseases of ancient people. students at hamline university measured strontium in enamel from extracted wisdom teeth by atomic absorption spectroscopy. solutions with a constant total volume of 10.0 ml contained 0.726 mg of dissolved tooth enamel plus variable concentrations of added sr. added sr find the concentration of sr in the 10 ml sample solution in parts per billion = ng/ml. find the concentration of sr in tooth enamel in parts per million = mu g/g.

Answers: 2

Answer

You know the right answer?

Molecules in all organisms are composed in part of radioactive carbon-14. which statement best expla...

Questions