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
LenaWriter [7]
3 years ago
15

How many atoms of carbon are in a pencil if the mass of carbon is 2.00 g.?

Chemistry
1 answer:
yulyashka [42]3 years ago
3 0

so, There are (1/12.0)moles with each mole having 6.022 x10^23 atoms. 1 mole of carbon-12 has 6.02 x 1023 iotas.


You might be interested in
The first method of determining the chemical composition of substances in space was to
ehidna [41]
<span>The first method to determine the chemical composition of a substance in space was using light. By determining red shift in the observed spectrum of light they could determine the elements they were observing. Different elements change the way light behaves and from this scientists can determine the makeup of things such as stars and nebulas.</span>
5 0
3 years ago
Read 2 more answers
Which of the following is the best example of chemical weathering?
shepuryov [24]

Answer: A. Limestone rocks dissolving in water

Explanation:

B: This is a physical change; it changes an object physically rather than chemically. It does not change the composition of the concrete, only the shape.

C: This is also a physical change because the water is just dragging sand with it, but not actually changing the composition of it.

D: Similar to option B, this is an example of physical weathering because the ice only divides the rock into different parts but doesn't change the composition or complexity of it.

4 0
3 years ago
What are some of the Differces between normal cells and cancer cells?
lilavasa [31]

Answer:

Normal cells are either repaired or die (undergo apoptosis) when they are damaged or get old. Cancer cells are either not repaired or do not undergo apoptosis.

Explanation:

8 0
3 years ago
Many industrial reactions, like the reaction of nitrogen gas (N2) and hydrogen gas (H2) to produce ammonia for fertilizers, have
Jobisdone [24]
Catalysts always quicken the experiment
8 0
3 years ago
Yesterday I drove 150 minutes at a speed of 100 miles/hr. How many miles did I drive?
katrin [286]
That’s 2.5 hours at 100 miles an hour
2.5•100=250
You drove 250 mi yesterday
6 0
2 years ago
Other questions:
  • A. What are the products for this chemical Equation? B. What kind of Reaction is this?
    9·1 answer
  • when objects like horseshoe are left outside over time, the iron in them will react with oxygen to produce rust. Is this a chemi
    6·1 answer
  • 25. Compare the compositions of binary ionic and binary molecular compounds. 26. Write the general chemical formula for an acid,
    8·2 answers
  • Does the amount of matter change when the water goes from a solid to a liquid?
    13·1 answer
  • How do these waves move through the soil and rock?
    5·1 answer
  • The quinine in tonic water shines a strange blue-white colour when lit with UV light. Explain what is happening here.
    12·1 answer
  • Explain the process of groundwater
    9·1 answer
  • `One way to make ammonia is to synthesize it directly from elemental nitrogen and hydrogen (though this isn't that easy). The eq
    12·2 answers
  • What is gold atomic number
    11·1 answer
  • When the pressure of an equilibrium mixture of SO2, O2, and SO3 is doubled at constant temperature, what the effect on Kp
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!