Chemistry, 19.04.2021 20:30 june1198

A geologist is attempting to date a layer of sedimentary rock. He performs radioactive dating using uranium-235, which has a half-life of 703 million years. He determines that the uranium-235 has undergone 3 half-lives. Approximately how old is the rock? 710 billion years

2.11 billion years

710 million years

235 million years

2.11 million years

none of the above

Answers: 3

Show answers

Another question on Chemistry

Chemistry, 21.06.2019 23:30

Write a paragraph that provides examples of each stage of volcanic activity, a description of the volcano, and facts about each stage.

Answers: 1

Answer

Chemistry, 22.06.2019 04:30

Long term exposure to waves can cause sunburns and skin cancer. a) visible b) infrared c) gamma rays d) ultraviole

Answers: 1

Answer

Chemistry, 22.06.2019 06:00

0.09 moles of sodium sulfate in 12 ml of solution

Answers: 3

Answer

Chemistry, 22.06.2019 15:20

Draw any one of the skeletal structures of a 2° alkyl bromide having the molecular formula of c6h13br and two stereogenic centers. indicate chirality by using wedge and hashed wedge notation. lone pairs do not need to be shown.

Answers: 1

Answer

You know the right answer?

A geologist is attempting to date a layer of sedimentary rock. He performs radioactive dating using...

Questions

Biology, 28.07.2019 07:00

As a sleep researcher is monitoring you, he notices that your brain waves are showing almost all delta waves. he awakens you at this point, and you aw...

Social Studies, 28.07.2019 07:00

According to the text, what method has been effective in stopping bullying in schools?...

Chemistry, 28.07.2019 07:00

Which substance has a coefficient of 2 when you balance the equation for this redox reaction? cu(s) + hno3(aq) → cu(no3)2(aq) + no(g) + h2o(l) hno3(a...

Chemistry, 28.07.2019 07:00

Which sample contains the greatest number of moles of cl? which sample contains the greatest number of moles of ? 3.8 mol hcl 4.2 mol naclo3 1.7 mol...

Chemistry, 28.07.2019 07:00

You have a solution containing 135.2 g of dissolved kbr in 2.3 l of water. what volume of this solution, in ml, would you use to make 1.5 l of a 0.10m...

Chemistry, 28.07.2019 07:00

Which variable is not required to calculate the gibbs free-energy change for a chemical reaction? temperature in kelvins change in entropy change in...

Chemistry, 28.07.2019 07:00

Which acid has the largest ka. which acid has the largest . hio3(aq) hbro3(aq) hclo3(aq) all three acids have the same ka?...

History, 28.07.2019 07:00

Describe the methods of warfare during world war i....