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vaieri [72.5K]
3 years ago
10

If a plane is traveling300 mph how long will it take to travel 1800 miles

Chemistry
1 answer:
bonufazy [111]3 years ago
5 0
My calculations say it'll take 600 hours???
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One beaker contains 100 mL of pure water and second beaker contains 100 mL of seawater. The two beakers are left side by side on
gayaneshka [121]

Explanation:

When we add a non-volatile solute in a solvent then due to the impurity added to the solution there will occur an increase in the boiling point of the solution.  

This increase in boiling point will be known as elevation in boiling point.

As one beaker contains seawater (water having NaCl) will have some impurity in it. So, more temperature is required by seawater to escape into the atmosphere.

Whereas another beaker has only pure water so it is able to easily escape into the atmosphere since, it contains no impurity.

Thus, we can conclude that level of pure water will decrease more due to non-volatile solute present in it as compared to seawater.

7 0
3 years ago
Describe the orbital diagram of an atom with eight electrons. Explain how this orbital diagram demonstrates Hund's rule. PLEASE
Mama L [17]

Answer:

The orbital notations shows the sequence of filling electrons into the orbitals of sublevels. This filling is based on some certain principles. For an atom with 16 electrons, the orbital diagram is shown below:  1s²2s²2p⁶3s²3p⁴ The maximum number of electrons in each sublevel of the orbitals are: 2 electrons for s-sublevel with one orbital

                 6 electrons for p-sublevel with three orbital

                 10 electrons for d-sublevel with five orbital

                 14 electrons for f-sublevel with seven orbital

According to the Aufbau's principle, sublevels with lower energy are filled before those with higher energy.

                           1s 2s 2p 3s 3p 4s 3d etc

Pauli's exclusion principle shows that no two electrons can have the same set of values for the four quantum numbers. Simply, no two electrons can spin in the same direction. Hund's rule states that electrons go into degenerate orbitals of sub-levles(s,p,d and f) singly before pairing commence. This rule shows that in each energy level, as the electron goes into the degenerate orbitals, they fill it one by one before they begin to pair up. As we know, each degenerate orbital can only accomodate 2 electrons. From the orbital diagram 1s²2s²2p⁶3s²3p⁴, the 3p sublevel has 3 orbitals. In each of the orbitals, two electrons would occupy them to give a maximum capacity of 6. But the sublevel has just 4 electrons. Based on Hund's rule, an electron will go into each of the 3 orbitals first. The remaining electron will now pair with the first degenerate orbital. This makes a total of 4 electrons.

Explanation:

8 0
3 years ago
Read 2 more answers
Why did the food coloring separate into different dyes?
Dmitrij [34]

It is a mixture

Explanation:

Food coloring is able to separate into different dyes because it just a simple mixture of different color pigments.

Under a chromatogram the different colors will migrate relatively over an absorbent.

A mixture is an impure substance with the following properties:

  • composition is indefinite as they are made up of two or more elements or compounds in any proportion by mass.
  • They are able to retain their identities i.e physical properties are maintained.
  • Their constituents reacts differently to changed conditions.
  • They can easily be separated into constituent by physical methods.

learn more:

Heterogeneous mixtures brainly.com/question/1446244

#learnwithBrainly

7 0
3 years ago
If the solubility of a gas in water is 1.22g/2.75 atm, what is it’s solubility (in g/L) at 1.0 atm
Slav-nsk [51]

Answer : The solubility of a gas in water at 1 atm pressure is, 0.4436 g/L

Solution : Given,

Solubility of a gas in water = 1.22 g/L     (at 2.75 atm pressure)

At pressure = 1 atm,     Solubility of a gas = ?

Now we have to calculate the solubility of a gas.

At 2.75 atm pressure, the solubility of a gas in water = 1.22 g/L

At 1 atm pressure, the solubility of a gas in water = \frac{1atm}{2.75atm}\times 1.22g/L=0.4436g/L

Therefore, the solubility of a gas in water at 1 atm pressure is, 0.4436 g/L


5 0
3 years ago
Given life’s diversity, scientists cannot say with certainty
Mandarinka [93]

Answer:

?

Explanation:

6 0
3 years ago
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