somekid2002 somekid2002

15-12-2022
Chemistry

Answered

The radioactive element carbon-14 has a half-life of 5750 years. A scientist determined that the bones from a mastodon had lost 58.9% of their carbon-14. How old were the bones at the time they were discovered?
The bones were about years old.

Answer :

Other Questions

If a sample of a radioactive isotope has a half-life of 1 year, how much of the original sample will be left at the end of the second year? What happens to the

Please help 100 points Record the elements present in each unknown astronomical object. Be sure to indicate “yes” or “no” for each element. Hydrogen Helium Lit

carbon and silicon belong to the same group of the periodic table yet carbon dioxide is a gas while silicon is a solid with a high melting point explain this di

A cylinder of a gas mixture used for calibration of air analyzers in laboratories contains 11.59% carbon dioxide, 15.94% water vapor, and the remainder xenon at

3. CaO94+CO210=CaCO2+5 The resection above is thermoclynamically favored at298 K, and the heat of resection, ΔHˣ, is 178 kalmot=. a. Precinct the sign of the en

Answer the four questions below regarding a particular type of alkaline battery in which the following half-reactions are used () +2015 (ap) F-0150 2 MnO, (1) +

Draw the structure of the tripeptide Gly-Gly-His. It has a role as a metabolite. Then determine the total charge of the tripeptide.

1. A block of metal with a mass of 70.3 grams is heated to 100 .°C and then dropped into a Styrofoam cup calorimeter containing 50.0 grams of water at 22.5°C. T

For a research project, a student decided to test the effect of the lead(II) ion on the ability of salmon eggs to hatch. This ion was obtainable from the water-

Part 1 (1 point Write the balanced chemical equation that occurs in an electrochemical cell that employs these half-reactions. Include states of matter. XX Mo➡