1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
netineya [11]
2 years ago
14

1. Calculate the average atomic mass of rubidium. Rubidium has two isotopes, 85Rb and 87Rb. 85Rb has an atomic mass of 84.912 am

u and occurs at an abundance of 72.17%. 87Rb has an atomic mass of 86.909 amu and occurs at an abundance of 27.83%. Show your work
Chemistry
1 answer:
DiKsa [7]2 years ago
5 0
Just use labels I’m lazy

You might be interested in
decomposition of hydrogen peroxide produce water and oxygen . calculate the volume of O2 formed from the decomposition of 150 mL
Ugo [173]

Explanation:

2H2O2 => 2H2O + O2

Moles of hydrogen peroxide = 0.150dm³ * (0.02mol/dm³) = 0.003mol .

Moles of oxygen = 0.0015mol.

Volume of oxygen = 0.0015mol * (22.4dm³/mol) = 0.0336dm³.

5 0
3 years ago
Put these numbers from greatest to least precision<br> 0.10 g/mL <br> 0.0447g/mL <br> 0.0700g/mL
horrorfan [7]
I am going to go with,

0.10 g/mL
0.0700 g/mL
0.0447 g/mL

I don't know if this is the correct answer, but I am 80% sure that it may be.
:) :)
6 0
3 years ago
The electron configuration of bromine is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p5 classify electrons in each.
bulgar [2K]

Bromine has the following electron configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p5. categorize the electrons in each. Answer for video: The video player is loaded.

On the periodic chart, row 5, column 7, is where you can find a chemical element that was identified in 1811. It has a proton count of 53 and an atomic mass of 126.9. Iodine's atom, then, contains 53 electrons in the following configuration: 1s2, 2s2, 2p6, 3s2, 3d10, 4p6, 5s2, 4d10, 5p5 (Kr 4d10 5s2 5p5). Cu Z = 29 has an electrical arrangement of 1s2 2s2 2p6 3s2 3p6 3d10 4s1. Copper (Co) has the following electron configuration: 1s2 2s2 2p6 3s3 3p6 4s2 3d7. If a chemist were to refer to Copper by its subshell, they would abbreviate this notation to "3d7."

To learn more about electrons please click on below link

brainly.com/question/1255220

#SPJ4

7 0
1 year ago
What is one way water moves through the nonliving parts of an ecosystem during the water system?
tatyana61 [14]

Answer:

Water moves through the help of living organisms in an ecosystem. ... Plants absorbs water through their root system and loss by transpiration. Water also moves through the living organisms in an ecosystem. Other nonliving processes such as evaporation, precipitation, water returns back into the atmosphere.

Explanation:

hope this helps you

5 0
3 years ago
Read 2 more answers
Why is making a peanut pretzel and cereal mixture
guajiro [1.7K]
It is two or more objects and different things that can be removed from each other.
7 0
3 years ago
Other questions:
  • How many moles of solute would be needed to form two liters of a one molar
    11·1 answer
  • Question 9
    5·1 answer
  • A cell must work to maintain a stable internal environment. It is also important for the environment around the cell to be stabl
    7·1 answer
  • The jet stream is one of the key winds that moves air masses. In which direction does the jet stream in the United
    11·1 answer
  • 1.6x10^23 lead atoms. Find the weight in grams
    9·1 answer
  • Write or show a complete formation of the following ionic compounds <br>a)sodium oxide (Na2O)​
    10·1 answer
  • Is the path of electrons orbital or reactive?
    10·1 answer
  • Boron trifluoride gas is collected at in an evacuated flask with a measured volume of . When all the gas has been collected, the
    12·1 answer
  • Nyatakan tiga aktiviti kerja yang melibatkan<br>proses pengurusan projek reka bentuk.​
    9·2 answers
  • A hot metal plate at 150°C has been placed in air at room temperature. Which event would most likely take place over the next fe
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!