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
crimeas [40]
3 years ago
7

With radiocarbon dating, scientists compare an object's carbon-14 levels with _____. the carbon-14 levels of an object from the

same time period carbon-14 levels in the atmosphere the carbon-14 levels in the rock surrounding the object the object's carbon-12 levels
Chemistry
1 answer:
trapecia [35]3 years ago
5 0

Answer:carbon-14 levels in the atmosphere

Explanation:

When carrying out radiocarbon dating, the level of carbon-14 in a sample is compared with the level of carbon 14 in the atmosphere because, objects exchange carbon-14 with the atmosphere.

Comparison of the activities of carbon-14 in the atmosphere and in the sample gives the age of the sample since the half-life of carbon-14 is a constant.

You might be interested in
Need help !!!!! ASAP
Julli [10]
<h2>Hello!</h2>

The answer is:

The new volume will be 1 L.

V_{2}=1L

<h2>Why?</h2>

To solve the problem, since we are given the volume and the first and the second pressure, to calculate the new volume, we need to assume that the temperature is constant.

To solve this problem, we need to use Boyle's Law. Boyle's Law establishes when the temperature is kept constant, the pressure and the volume will be proportional.

Boyle's Law equation is:

P_{1}V_{1}=P_{2}V_{2}

So, we are given the information:

V_{1}=2L\\P_{1}=50kPa\\P_{2}=100kPa

Then, isolating the new volume and substituting into the equation, we have:

P_{1}V_{1}=P_{2}V_{2}

V_{2}=\frac{P_{1}V_{1}}{P_{2}}

V_{2}=\frac{50kPa*2L}{100kPa}=1L

Hence, the new volume will be 1 L.

V_{2}=1L

Have a nice day!

4 0
2 years ago
Hey, if anyone is really good at Chemistry can you please let me know? I can give either my pa dlet or my email, thanks :)
Vesnalui [34]

Answer:

i'm pretty good at it

Explanation:

8 0
2 years ago
Read 2 more answers
_______ is the process in which light energy is transformed into food energy. A.life B.photosynthesis C.abiotic D.biotic
kolezko [41]

Answer:

B) Photosynthesis is the process in which light energy is transformed into food energy.

4 0
2 years ago
Read 2 more answers
The sample of 15.0 g of KCl is dissolved into a solution with a total volume of 250.0 mL. What is the molarity of KCl in the sol
lina2011 [118]

Answer:

0.805 M.

Explanation:

Hello!

In this case, since the molarity of a solution is computing by dividing the moles of solute over the volume of solution in liters (M=n/V), for 15.0 g of potassium chloride (74.55 g/mol) we compute the corresponding moles:

n=15.0gKCl*\frac{1molKCl}{74.55gKCl}=0.201molKCl

Next, since the volume is 0.2500 in liters, the molarity turns out:

M=\frac{0.201mol}{0.2500L} \\\\M=0.805M

Best regards!

3 0
3 years ago
Why is it better to use the metric system, rather than the English system, in scientific measurement?
frez [133]
The metric system is based on powers of 10 so it is much easier to convert units, often just by moving the decimal point.
3 0
2 years ago
Read 2 more answers
Other questions:
  • The molar heat of fusion of gold is 12.550 kJ mol–1. At its melting point, how much mass of melted gold must solidify to release
    7·2 answers
  • What are at least two things people can do today to help protect Earth and reduce levels of CO2.
    12·1 answer
  • Find the effective resistance of the circuit
    15·1 answer
  • How much heat is absorbed by a 26g iron skillet when its temperature rises from 13oC to 26oC?
    9·1 answer
  • If the pressure of a gas is 2.42 atm, what is its pressure in kPa?
    5·2 answers
  • What is technological design useful for?
    11·1 answer
  • Use the given Nernst equation and reaction to solve this problem. What is the potential of this cell with the given conditions?
    6·1 answer
  • I need 2 examples of chemical and physical change. *15 points
    14·1 answer
  • Someone help please! Extra points &amp; brainlest!
    6·2 answers
  • The polarity of a bond between two elements can be best determined by.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!