Chemistry
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

answer
Answers: 2

Other questions on the subject: Chemistry

image
Chemistry, 21.06.2019 20:00, angeljohnson2081
Which object forms when a supergiant runs out of fuel? a red giant a black hole a white dwarf a neutron star
Answers: 1
image
Chemistry, 22.06.2019 03:40, erikacastro259
What is an example of a physical property?
Answers: 1
image
Chemistry, 22.06.2019 08:00, flakko1899
An electron moved from shell n = 2 to shell n = 1. what most likely happened during the transition? a fraction of a photon was added. a photon of energy was absorbed. a fraction of a photon was removed. a photon of energy was released.
Answers: 1
image
Chemistry, 22.06.2019 12:30, Svetakotok
Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?
Answers: 2
Do you know the correct answer?
Iwill give you 10 !
a newly discovered element, z, has two naturally occurring isotopes. 90.3...

Questions in other subjects:

Konu
Mathematics, 22.04.2020 16:55
Konu
Mathematics, 22.04.2020 16:56