Air is a mixture of gases like nitrogen, oxygen and traces of other gases like argon and many others. To improve this experiment, the mixture should be separated into its components to avoid contamination. In order to achieve this, you can use the cryogenic process, which is a distillation process at very low temperatures. In this case, you can use pure nitrogen or pure oxygen for your experiment.
Answer: The molarity of is 0.07 M
Explanation:
According to the neutralization law,
where,
= basicity = 1
= molarity of solution = ?
= volume of solution = 25.0 ml
= acidity of = 1
= molarity of solution = 0.1000 M
= volume of solution = 17.5 ml
Putting in the values we get:
Therefore, molarity of is 0.07 M
1) The ground state of the atom is A
2) There are two excited states
3) There are three lines in the line spectrum
4) The transition A - B has the shortest wavelength
5) The transition that has the longest wavelength is B - C
<h3>What is the energy diagram?</h3>
We know that the energy diagram has to do with the manner in which the electrons that are in the atom can be arranged into specific energy levels. The energies levels would always begin at the ground state which is the lowest energy level.
The other higher energy levels that are above the ground state of the atom can be said to be the excited states of the atom or the molecules as the case may be. The energy level diagram of a certain atom or molecule has been shown in the image that is attached.
Learn more about energy level:brainly.com/question/17396431
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Answer:
Explanation:
It is a physical change .
If we start from 10 atm of pressure and - 40 celsius of temperature to 20 atm of pressure and 70 celsius of temperature , it is a change in which pressure increases and temperature also increases that means heat is added up to the gas . If we cool the gas we can retrieve its earlier pressure and temperature .
So it is a physical change . In physical change , we can retrieve the old position by simple means.
Answer:
Compound
Explanation:
We want to know if it's a compound or a mixture.
An example of a mixture is salt water: you can heat it hot enough to boil off the water, leaving only the salt. This is a physical change, which is how you know it's a mixture.
Something like gold is a compound: if you heat it, or hit it, you'll still only have gold. You can only break it down by chemical means, which is how you know it's a compound.