subject
Chemistry, 29.06.2021 04:00 Damagingawsomeness2

Suppose an element has two naturally occurring isotopes 42
X
20

44
X
20
with atomic masses 42.00 amu and 45.00 amu, respectively. Determine the percent abundance of the
45
X
20
isotope given an average atomic mass of 43.22 amu.

ansver
Answers: 2

Another question on Chemistry

question
Chemistry, 22.06.2019 01:00
Look at the bean data from days 4–6. use these data to explain how natural selection changed the number of dark red walking beans over time. writing part
Answers: 3
question
Chemistry, 22.06.2019 04:30
Why is nh3 classified as a polar molecule
Answers: 2
question
Chemistry, 22.06.2019 09:00
Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.
Answers: 2
question
Chemistry, 22.06.2019 10:50
Someone offer some answers to this, i will give 98 coins and mark as brainliest! i will put the rest of the lab down in the comments,solutions pre-lab questions: in this lab, you will make fruit drinks with powdered drink mix. complete the pre-lab questions to get the values you need for your drink solutions. calculate the molar mass of powered fruit drink mix, made from sucrose (c12h22o11).using stoichiometry, determine the mass of powdered drink mix needed to make a 1.0 m solution of 100 ml. (hint: use molarity = to find the moles of drink mix, then convert moles to grams using a mole conversion.)what mass of powdered drink mix is needed to make a 0.5 m solution of 100 ml?
Answers: 1
You know the right answer?
Suppose an element has two naturally occurring isotopes 42
X
20

44
X
Questions
question
Social Studies, 27.05.2021 17:40
question
Mathematics, 27.05.2021 17:40
question
Mathematics, 27.05.2021 17:40
question
Social Studies, 27.05.2021 17:40
question
Mathematics, 27.05.2021 17:40
question
Mathematics, 27.05.2021 17:40
question
Mathematics, 27.05.2021 17:40
Questions on the website: 13722362