Chemistry, 27.09.2019 23:30, mhayslett

Iwill give you 10 !
a newly discovered element, z, has two naturally occurring isotopes. 90.3 percent of the sample is an isotope with a mass of 267.8 u, and 9.7 percent of the sample is an isotope with a mass of 270.9 u. what is the weighted average atomic mass for this element?
268.1 u
269.0 u
269.4 u
270.6 u

Answers: 2

Show answers

Other questions on the subject: Chemistry

Chemistry, 22.06.2019 18:30, sarahbug56

Which rate indicates the number of children that would be born per woman if she were to live to the end of her child bearing years

Answers: 2

continue

Chemistry, 22.06.2019 19:30, liyahlanderson2232

Astring vibrates with a frequency of 10 hz. why can't a person hear the sound waves produced by the vibrating string, no matter how large the amplitude of the waves? out! this is homework and due tomorrow! you so much!

Answers: 2

continue

Chemistry, 23.06.2019 00:30, emilylizbeth12334

Which of the following best describes technology a. something created for only scientists to use b. the method of thinking that scientists use. c. the application of engineering to create useful products. c. a scientific idea

Answers: 1

continue

Chemistry, 23.06.2019 11:30, elpeke102p73fz3

Jenny places a strip of ph paper into a solution. when she removes the ph paper, it has turned yellow-green. what should jenny do next to determine the ph of her solution? a. use a different testing method because the ph paper should not change colors b. place the ph paper into a machine that reads the ph of the solution c. compare the ph paper's color with the color of ph paper from another solution d. compare the ph paper's color with a chart of colors and ph ranges

Answers: 1

continue

Do you know the correct answer?

Iwill give you 10 !
a newly discovered element, z, has two naturally occurring isotopes. 90.3...