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
Firlakuza [10]
3 years ago
15

If the first isotope has a mass of 259.98 amu and a percent abundance of 35%, what is the percent abundance of the second isotop

e?
Chemistry
1 answer:
brilliants [131]3 years ago
7 0
If it is assumed that there are only two isotopes then the percent abundance needs to add up to 100%

100-35= 65%

The second isotope will have a 65% abundance.
<span />
You might be interested in
Write a balanced equation of decomposition reaction which is carried out by the catalyst
xz_007 [3.2K]

Answer:

A decomposition reaction is a reaction in which the compound is broken up into its constituents.

A decomposition reaction is a reaction in which the compound is broken up into its constituents. When the decomposition is brought about by a catalyst, it is called catalytic decomposition.

Let us look at the catalytic decomposition of the compound potassium trioxochlorate V. in the presence of the catalysts manganese dioxide. The reaction occurs as follows;

2KClO3 -----> 2KCl + 3O2

Explanation:

<u><em>pls mark as brainliest</em></u>

3 0
2 years ago
What is the mass of a wooden block with a density 2.0 and a volume of 7.0? (Need answer ASAP!!)
Scorpion4ik [409]

Answer:

mass= 14kg

Explanation:

density= mass/volume

so that means mass= volume x density

m= 2kg/m³ x 7m³

m= 14 kg

Hope this helps

5 0
3 years ago
Read 2 more answers
On a cool morning, uyen’s breath can form a cloud when she breathes out. which changes of state are most responsible for uyen se
Ganezh [65]
<span>You may already know that when you breathe in, your body takes in oxygen from the air. When you breathe out, your lungs expel carbon dioxide back into the air. But the breath you breathe out contains more than just carbon dioxide.</span>

When you exhale (breathe out), your breath also containsmoisture. Because your mouth and lungs are moist, each breath you exhale contains a little bit of water in the form of water vapor(the gas form of water).

For water to stay a gas in the form of water vapor, it needs enough energy to keep its molecules moving. Inside your lungs where it's nice and warm, this isn't a problem.

4 0
3 years ago
Read 2 more answers
What is the part of the cartridge that actually flies outward (the projectile)?
zhannawk [14.2K]

Answer:

the culotte, the fulminant capsule and the sheath or cap together with remains of powder

Explanation:

A bullet has a nose, sheath or casing, a short propellant charge, and a capsule.

All these components are part of the vouchers. The classification of these is in metallic and semi-metallic.

3 0
2 years ago
More help please!?!?!?!?!
e-lub [12.9K]
It's back wards lol you need to take it right
6 0
3 years ago
Read 2 more answers
Other questions:
  • In a sample of liquid water (h2o), which property differs among the water molecules? number of hydrogen and oxygen atoms bond st
    13·2 answers
  • Which of the following is NOT something that Earth's atmosphere protects us from? A. meteoroids B. ultraviolet light C. greenhou
    5·2 answers
  • Why has diamond has a high melting point
    6·1 answer
  • A sample of gas has an initial volume of 25 L and an initial pressure of 3.5 Pa. If the pressure changes to 1.3 Pa, find the new
    10·1 answer
  • 9. Which of the following concentrations has units of moles of solute per liter of solution?
    12·1 answer
  • What species is reduced in the reaction below?
    15·1 answer
  • El acido nitrico se obtiene industrialmente por oxidacion de amoniaco (nh3), de acuerdo con la ecuacion: 4nh3 + 702 - h2o + hno2
    15·1 answer
  • Differences between alkalis, bases and acids? (answer for many points :) )
    10·1 answer
  • Identify the best practices when storing and using drying agents in the lab.
    7·1 answer
  • What volume in liters of carbon dioxide will be produced by the reaction of 18.5 liters of oxygen gas at STP?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!