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
jekas [21]
3 years ago
5

What is a closed system?

Chemistry
2 answers:
ddd [48]3 years ago
7 0
I believe the correct answer is D
hoa [83]3 years ago
6 0

Answer:

The correct answer is D

A.P.E.X

You might be interested in
If 0.0106 g of a gas dissolves in 0.792 L of water at 0.321 atm, what quantity of this gas (in grams) will dissolve at 5.73 atm?
Alex73 [517]

Answer:

0.189 g.

Explanation:

  • This problem is an application on <em>Henry's law.</em>
  • Henry's law states that the solubility of a gas in a liquid is directly proportional to its partial pressure of the gas above the liquid.
  • Solubility of the gas ∝ partial pressure
  • If we have different solubility at different pressures, we can express Henry's law as:

<em>S₁/P₁ = S₂/P₂,</em>

S₁ = 0.0106/0.792 = 0.0134 g/L and P₁ = 0.321 atm

S₂ = ??? g/L and P₂ = 5.73 atm

  • So, The solubility of the gas at 5.73 atm (S₂) = S₁.P₂/P₁ = (0.0134 g/L x 5.73 atm) / (0.321 atm) = 0.239 g/L.

<em>The quantity in (g) = S₂ x V = (0.239 g/L)(0.792 L) = 0.189 g.</em>

<em></em>

8 0
3 years ago
given the following reaction: CuO (s) + H2 (g) to Cu(s) + H2O (g). If 250 L of hydrogen gas are used to reduce copper (II) oxide
QveST [7]

24g is needed no explanation

4 0
3 years ago
according to the kinetic molecular theory the pressure exerted by a sample of gas at constats volume doubles when the absolute t
ozzi

Answer: gas molecules will hit the container walls more frequently and with greater force

Explanation:

According to the postulates of  kinetic molecular theory:

1. The pressure exerted by a gas in a container results from collisions between the gas molecules and the container walls.

2. The average kinetic energy of the gas molecules is proportional to the kelvin temperature of the gas.

When the temperature is increased, so the average kinetic energy and the rms speed also increase. This means that the gas molecules will hit the container walls more frequently and with greater force because they are all moving faster. This increase the pressure.

7 0
3 years ago
Mammals use their lungs to provide oxygen for themselves from the air. Fish spend a majority of their time in the water, and ins
Elenna [48]
B of course is the answer
7 0
3 years ago
Read 2 more answers
Summary of a trade-off between. Potential and kinetic energy
uranmaximum [27]
Simply put, Potential energy is the "build up". If I had a ball on the top a 5ft slide, it would have potential energy, as long as it hasn't slid down yet.

If I had another ball on a 10ft slide, it would have twice the potential energy the first ball had.

What comes next is kinetic energy, which is the energy used when the object is moving, like the ball as it goes down the slide. The faster it moves, the more kinetic energy. 

Basically, <em>Potential</em> is the "build up" but it does not, I repeat does not move.

<em>Kinetic</em> energy is the use of the "build up" through movement.
<span>
</span>
7 0
4 years ago
Other questions:
  • Why is a sodium potassium pump called an electrogenic?
    6·2 answers
  • A physical change _____ change the composition or identity of the substance. will will not 2. An example of a physical change is
    8·1 answer
  • What is the meaning of the following metric prefixes kilo,deco,centi,milli,micro and nono
    11·1 answer
  • 9. How many significant figures are there in the number 0.0001372?
    12·2 answers
  • When two substances are mixed together and a color change has occured, is it a chemical change?
    10·1 answer
  • Xenon-60 In order, what is the number of protons, electrons, and neutrons.
    8·1 answer
  • Why does a reaction slow down with time?
    9·2 answers
  • Which of the following are reasons the ocean marine biomes are a challenging place for organisms to live? Choose all that apply.
    8·2 answers
  • Does the pH increase or decrease, and does it do so to a large or small extent, with each of the following additions?(a) 5 drops
    6·1 answer
  • What feature of an orbital is related to each of the following?<br> (a) Principal quantum number (n)
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!