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
Anika [276]
3 years ago
5

Comets orbit in short, circular paths around the sun. Is this true or false..? Thank you!

Chemistry
2 answers:
Luba_88 [7]3 years ago
7 0
The answer to your question is true.
Nuetrik [128]3 years ago
3 0
I think it's false because they travel in an elliptical pattern around the sun. There are some comets that travel in a 'v' shape.
You might be interested in
Which of the following are advantages of the SI system?
lions [1.4K]
The correct answer is A, B and C
3 0
3 years ago
Read 2 more answers
To launch a rocket, liquid oxygen and liquid hydrogen are combined inside the rocket engine to react explosively. How do you thi
KIM [24]

Answer:

Explanation:

In this chemistry lab, students investigate how to build and launch a simple rocket that uses hydrogen and oxygen gases that will be mixed to propel the rocket (large bulb plastic pipette). Students will understand the principles of combustion reactions, kinetics, stoichiometry of reactions, activation energy, explosive mixtures, rocketry, and different types of chemical reactions. Students will explore and determine the proportions of hydrogen and oxygen mixture that will achieve the best launch results. Students will compare the balanced chemical reaction of hydrogen and oxygen with their lab results; students should discover that the optimal distance occurs when the mixture of hydrogen and oxygen is two to one hydrogen, oxygen mixture ratio and this can be determined theoretically from the balanced chemical reaction equation. Students will perform the lab, collect data, and discuss, compare, and contrast their lab findings with the balanced chemical reaction equation. Students will present their structured inquiry investigations using a power-point presentation. Other groups along with the teacher will assess each group by using a provided rubric. Group assessments will be the deciding assessment for the final lab score. A follow up activity could investigate how NASA scientists launch real rockets into space and propose a procedure to investigate and collect data on a launching a heavier object at the school football field.

3 0
3 years ago
Given that the free energy of the twist-boat conformer of cyclohexane is 5.3 kcal/mol greater than that of the chair conformer,
marishachu [46]

Answer:

0.013%

Yes, it does. The answer agrees with the statement.

Explanation:

Both conformers are in equilibrium, and it can be represented by the equilibrium equation K:

K = [twist-boat]/[chair]

The free energy between them can be calculated by:

ΔG° = -RTlnK

Where R is the gas constant (8.314 J/mol.K), and T is the temperature (25°C + 273 = 298 K).

ΔG° = 5.3 kcal/mol * 4.182 kJ/kcal = 22.165 kJ/mol = 22165 J/mol

22165 = -8.314*298*lnK

-2477.572lnK = 22165

lnK = -8.946

K = e^{-8.946}

K = 1.30x10⁻⁴

[twist-boat]/[chair] = 1.30x10⁻⁴

[twist-boat] = 1.30x10⁻⁴[chair]

The percentage of the twist-boat conformer is:

[twist-boat]/([twist-boat] + [chair]) * 100%

1.30x10⁻⁴[chair]/(1.30x10⁻⁴[chair] + [chair]) *100%

0.013%

The statement about the conformers is that the chair conformer is more stable, and because of that is more present. So, the answer agrees with it.

3 0
3 years ago
At constant pressure, a sample of gas occupies 420 mL at 210 K. What volume does the gas occupy at 250 K?
marissa [1.9K]
V₁ = 420 mL
T₁ = 210 K
V₂ = ?
T₂ = 250 K
(Answer is 500 mL)

5 0
3 years ago
The Groups 1 and 2 on the periodic table contain what atom type?
Gemiola [76]
Metals is the right answer.
5 0
3 years ago
Read 2 more answers
Other questions:
  • If the number of moles of a gas initially contained in a 2.10 l vessel is doubled, what is the final volume of the gas in liters
    6·1 answer
  • A giant mass of air that carries warm weather to regions of the earth?
    12·1 answer
  • Helllppppppppp....<br>don't guess !!!​
    12·2 answers
  • PLEASE PLEASE PLEASE HELP SOS ASAP
    7·2 answers
  • How do you know if a compound will dissociate or ionize in water?
    11·1 answer
  • Write in exponential form: 34⋅34⋅34⋅34⋅34⋅34⋅34⋅34.
    9·1 answer
  • (BRAINLIEST)<br> Which of the compounds are used to reduce acidity of soil
    8·1 answer
  • Which list represents the
    12·1 answer
  • Please help due tomorrow <br> Giving Brainlesst
    8·1 answer
  • The diagram below shows a gas sample being measured with an open-end mercury (Hg) manometer. If a barometer reads 730. 1 torr, w
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!