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
Evgen [1.6K]
3 years ago
9

Of the​ rock's original​ uranium-235 remains. how old is the​ rock

Chemistry
1 answer:
Gemiola [76]3 years ago
5 0
2.1 billion years
2,139,000,000 to be exact
You might be interested in
As a scuba diver descends under water, the pressure increases. At a total air pressure of 2.71 atm and a temperature of 25.0 C,
Semenov [28]

Answer:

1.32\times 10^{-3} mol/Lis the solubility of nitrogen gas in a diver's blood.

Explanation:

Henry's law states that the amount of gas dissolved or molar solubility of gas is directly proportional to the partial pressure of the liquid.

To calculate the molar solubility, we use the equation given by Henry's law, which is:

C_{N_2}=K_H\times p_{liquid}

where,

K_H = Henry's constant = 6.26 \times 10^{-4}mol/L.atm

p_{N_2} = partial pressure of nitrogen

p_{N_2}= P\times \chi_{N_2} (Raoult's law)

=2.71 atm\times 0.78=2.1138 atm

C_{N_2}=6.26 \times 10^{-4}mol/L.atm\times 2.1138 atm

C_{N_2}=1.32\times 10^{-3} mol/L

1.32\times 10^{-3} mol/Lis the solubility of nitrogen gas in a diver's blood.

3 0
3 years ago
Why is the water cycle called a cycle and not a system?
alexira [117]
It is called a cycle because it is repetitive, therefore making it a cycle (or almost never ending)
5 0
3 years ago
Is zinc an example of a element or compound?
Lerok [7]

Answer:

Zinc is an <em>element</em>.

Explanation:

Compounds are composed of two or more elements

3 0
2 years ago
Read 2 more answers
What happens to water during evaporation?
kotegsom [21]
D would be your best bet because evaporation occurs when water is heated, it then vibrates and then magic!
5 0
3 years ago
Read 2 more answers
How much voltage is required to run 1.6 A of current through a 240
pentagon [3]

Answer:

answer is not there

Explanation:

V=1.6×240

V=384volt

6 0
2 years ago
Other questions:
  • Which of the following statements is true with regard to transverse and longitudinal waves?
    15·2 answers
  • Please help!!! Is it balanced or unbalanced?
    12·1 answer
  • A small container is filled with liquid water. What can happen if the container of water is an open system that couldn’t happen
    6·2 answers
  • An inclined plane that moves and has one or two sloping sides forms a machine called a ____.
    12·2 answers
  • What differences did you notice in the different states of water
    7·1 answer
  • Hlo ;) lol im banned and my name is kimboslicer it is so sad my accout is bloked 4 23:12
    14·2 answers
  • ANSWER THESE 5 MULTPLE CHOICE QUESTIONS!!!<br> I'LL GIVE 30 POINTS AND A BRAINIEST:)
    14·2 answers
  • Structural formula of 1 methyl butane​
    7·1 answer
  • 2. What is the chance that a carbon-14 atom will decay in six thousand years?
    9·1 answer
  • What are the names of the elements symbolized by Ba , Na , and Fe , respectively? Spelling counts!
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!