subject
Chemistry, 30.10.2020 21:50 krazziekidd2p845ri

Element X has 2 naturally occurring isotopes. The first isotope has an atomic mass of 44.009 amu and it’s percent abundance is 33%. The second isotope has an atomic mass of 40.5 amu and it’s percent abundance is 67%. What is the atomic mass of Element X A 39.99 amu
B 39.91 amu
C 40.42 amu
D 41.66 amu

ansver
Answers: 1

Another question on Chemistry

question
Chemistry, 21.06.2019 22:30
Which type of bond is present in hydrogen sulfide (h2s)? the table of electronegativities is given. a. hydrogen b. ionic c. nonpolar covalent d. polar covalent
Answers: 1
question
Chemistry, 22.06.2019 06:10
Explain the relationship between forward and backward reactions in equilibrium, and predict how changing the amount of a reactant (creating a tension) will affect that relationship.
Answers: 1
question
Chemistry, 22.06.2019 08:30
Which common material is an example of a polymer? (25 pts) a. steel b. plastic c. petroleum d. rubbing alcohol
Answers: 2
question
Chemistry, 22.06.2019 09:40
In the lab, ammonia was mixed with water to form ammonium hydroxide. what is/are the reactant(s)? o water and ammonia o ammonia o ammonium hydroxide need
Answers: 2
You know the right answer?
Element X has 2 naturally occurring isotopes. The first isotope has an atomic mass of 44.009 amu and...
Questions
question
Mathematics, 31.07.2019 13:50
question
Mathematics, 31.07.2019 13:50