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
anzhelika [568]
3 years ago
9

If the natural abundance of Br−79 is 50.69 %, what is the natural abundance of Br−81?

Chemistry
1 answer:
Alexxandr [17]3 years ago
8 0
The natural abundance of bromine in general in nature is 100%.
This means that:
the natural abundance of Br-79 + the natural abundance of Br-80 = 100

We know that the natural abundance of Br-79 is 50.69%. This means that the natural abundance of Br-80 is the rest of the 100%.

Natural abundance of Br-80 = 100% - 50.69% = 49.31%
You might be interested in
Hydrogen bonds can be found between molecules of which substance? NH3 H2 HI CH4
DochEvi [55]

Answer:

All except ch4

Explanation:

NH3 N H 3 and HF can form hydrogen bonds as they have a hydrogen atom bonded to fluorine and nitrogen atoms.

3 0
3 years ago
Carbon burns with oxygen to produce carbon dioxide gas.
Reika [66]

Answer:

Explanation:

The answer is

C + 20=CO2

3 0
3 years ago
IF SOMEONE HELP ME WITH THIS, I'll GIVE 100 POINTS! Create an organization structure for fictional elements. There are many ways
Vlad1618 [11]
Bruh you didn’t give 100 points tho
6 0
3 years ago
How does Elnora feel about her future? A) She takes one day at a time. B) She is apprehensive and anxious. C) She is optimistic
Georgia [21]

Answer:

D) she is confident and has already made plans

4 0
3 years ago
The photon of light that is emitted as an electron drops back to its original orbit is:
Alex73 [517]

Answer:

energy

Explanation:

The photon of light that is emitted as an electron drops back to its original orbit is energy and this energy is released during de-excitation process.

The electron is jumped into higher level and back into lower level by absorbing and releasing the energy.

The process is called excitation and de-excitation.

Excitation:

When the energy is provided to the atom the electrons by absorbing the energy jump to the higher energy levels. This process is called excitation. The amount of energy absorbed by the electron is exactly equal to the energy difference of orbits.  For example if electron jumped from K to L it must absorbed the energy which is equal the energy difference of these two level. The excited electron thus move back to lower energy level which is K by releasing the energy because electron can not stay longer in higher energy level and comes to ground state.

De-excitation:

When the excited electron fall back to the lower energy levels the energy is released in the form of radiations. this energy is exactly equal to the energy difference between the orbits. The characteristics bright colors are due to the these emitted radiations. These emitted radiations can be seen if they are fall in the visible region of spectrum

3 0
3 years ago
Other questions:
  • What is the molarity of a solution prepared by dissolving 1.56 g of gaseous hcl (molar mass = 36.5 g into enough water to make 2
    14·1 answer
  • What is a mass number​
    6·1 answer
  • What is the CHARGE of the Sodium lon?​
    6·1 answer
  • What mass of propane is necessary to react with the amount of oxygen in the chemical formula C3H8 + 5O2 → 3CO2 + 4H2O
    5·1 answer
  • Do you think naturally produced antimicrobial products like nisin and natamycin should replace sorbic acid for food preservation
    14·1 answer
  • Which quantity could best be measured with a meter stick?
    12·1 answer
  • Please help me create an hypothesis in the, if/then format for the question Does different types of vinegar, change the time it
    13·2 answers
  • What is the difference between organic and non organic chemiatty?
    12·1 answer
  • Please helpppp I have a quiz tomorrow for Science and I'm having a hard time studying!!!!
    5·1 answer
  • Which is better to get a girls number or her snap
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!