2 h<br> v=/<br> 3<br> m=500g<br> d = ?

Which structure is part of the central nervous system?

Oxana [17]

The spinal cord is part of the central nervous system

4 0

3 years ago

How to balance this equation in chemistry

saveliy_v [14]

Answer:

4NH₃(g) +3O₂(g) ⇒2N₂(g) +6H₂O(g)

Explanation:

4 0

2 years ago

According to the kinetic-molecular theory, the average kinetic energy of gas

vladimir1956 [14]

Answer:

The average kinetic energy of a gas depends only on its temperature.

Explanation:

The average kinetic energy of particles in a gas can be found using the equation

$\displaystyle \text{Average K.E.} = \frac{3}{2}k\cdot T$ ,

where

$k$ is the Stefan-Boltzmann constant, and
$T$ is the absolute temperature of this gas (the one in degree Kelvins.)

As seen in this equation, the average kinetic energy of particles in a gas depends only on the temperature of the gas. Also, since the question is asking for the average not the total kinetic energy, the number of particles in this gas doesn't matter, either.

8 0

3 years ago

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When placed in a 100-ml cube-shaped box, a substance filled the cube and has a volume of 100ml. when placed in a 50-ml tube, tha

finlep [7]

The state of the substance, most likely, would be a gas. Given the same amount of the substance being able to fill different volumes of containers, means that the substance is compressible. From the three phases of matter, gas is surely the compressible one while liquids are sometimes compressible but only up to certain extent. Also, the substance cannot be a a solid since a solid would have a definite shape and volume. Nor it cannot be a liquid since a liquid cannot fill the whole container and it does not change its volume no matter what is the container.

5 0

3 years ago

Marcela dissolves 80.0 g of ammonium nitrate in 50.0 mL of water at room temperature and notes that the temperature of the solut

seraphim [82]

Answer: The correct answer is A

Explanation:

On addition of the ammonium nitrate to 50 ml of water the temperature decreases which means that reaction between the ammonium nitrate and water is an endothermic reaction.The value of $\Delta H$ is positive for an endothermic reactions.

$\Delta H>0$

Entropy is a degree of randomness of the system.

On addition of the ammonium nitrate to water ammonium nitrate break down into ions which means that entropy is increased.

$\Delta S>0$

$\Delta G=\Delta H-T\Delta S$ (Gibb's free energy)

Since, ammonium nitrate is getting dissolved in water which means that this reaction is spontaneous and $\Delta G$ of spontaneous reaction is negative that is:

$\Delta G$

4 0

2 years ago

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2 h v=/ 3 m=500g d = ?