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
Scorpion4ik [409]
3 years ago
14

How many moles in 28 grams of CO2?

Chemistry
1 answer:
Phantasy [73]3 years ago
4 0

# moles = mass / Mr

moles = 28 / (12+(16*2))

#moles = 28/44

#moles = 0.63 moles

You might be interested in
B. How do you think the physical properties (strength, flexibility, and viscosity) of the polymer would change if more borate ha
Talja [164]

It became thicker and its viscosity decreased and cannot flow as easily as before.

You ignite a chemical reaction by adding the borax solution to the glue mixture.

In a chemical reaction, the molecules of glue and borax combine to form a flexible, springy new substance. With rubber's vulcanization serving as a model, chemical cross-linking has been extensively employed to change the physical properties of polymeric materials.

Chemical links between polymer chains provide a substance with a more solid structure and perhaps a better-defined shape. It thickened and lost viscosity, making it more difficult to flow than it once could.

Learn more about the chemical reaction  here brainly.com/question/16714866

#SPJ4.

3 0
1 year ago
The atmosphere is a(n) _____. <br> 1. element <br> 2. compound <br> 3. mixture
tensa zangetsu [6.8K]
The atmosphere is a mixture of gasses.
5 0
3 years ago
Read 2 more answers
the mass of a 125 cm3 piece of material is 82.75 g. determine the density of this material . please explain
andre [41]
You would do 82.75 divided by 125 cm3 and get 0.6620 g/cm3 because to find density you mist divide mass and volume and grams is always mass and cm3 or mL is always volume. hope i helped!
6 0
3 years ago
Which observation provided Albert Einstein the clue that he needed to explain the photoelectric effect? Light is made up of extr
Aliun [14]

The correct answer is

Energy of electrons depends on light’s frequency, not intensity.

As per photoelectric effect, if we incident a light on metal surface it will results into emission of electron from it

if we increase the number of photons the number of electrons will increase however if we increase the frequency the number of photons will not increase

While if we increase frequency the energy of electrons will increase as

Energy of photon = Work function of metal + kinetic energy of electrons

7 0
3 years ago
Read 2 more answers
Different isotopes of the same element must have a different
Naddika [18.5K]
Different isotopes of the same element must have a different mass number
5 0
3 years ago
Other questions:
  • Chao is thinking about doing a project on plate tectonics for the school science fair. Which design would best relate to how the
    9·2 answers
  • Your window thermometer shows that the temperature outdoors is 87.3°f. how should you report this temperature to your friend in
    10·1 answer
  • When a hydrogen atom covalently bonds to another atom, how many electrons associated with this hydrogen atom become involved in
    14·1 answer
  • Is it possible to start with 5g of one chemical and 10g of another chemical and make 15g of a third chemical?
    14·1 answer
  • Uses a special type of paper to separate liquids based on their different densities
    15·1 answer
  • Calculate the mole fraction of the total ions in an aqueous solution prepared by dissolving 0.400 moles of MgBr2 in 850.0 g of w
    6·2 answers
  • Which of the following locations would most likely have the most fertile soul?
    8·1 answer
  • Which of the following conclusions can be drawn from JJ Thomson's cathode ray experiments?A.) Atoms contain electronsB.) Practic
    6·1 answer
  • I put 40 points on this!!! PLEASE HELP!! I NEED AN A OR MY MOM IS GONNA KILL ME!
    11·1 answer
  • The noble gases are grouped together in the periodic table. where are the noble gases in the table?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!