The purpose of this experiment is to demonstrate the relationship between pressure and volume. Pulling the plunger back increases the volume of the gas in the syringe thereby increasing the size of the marshmallow but pressure is reduced. The relationship to be demonstrated is that pressure and volume have an inverse relationship.
<h3><u>Answer;</u></h3>
only in the n = 3 energy level
<h3><u>Explanation;</u></h3>
- <em><u>The atom of a chemical element is made up of sub-atomic particles which are the neutrons, protons and electrons.</u></em> The neutrons and protons occupies the nucleus of an atom while the electrons occupy the energy levels.
- <em><u>The first energy level (n=1) of an atom occupies a maximum of two electrons because it has only an S-orbital which can only have two electrons.</u></em>
- <u>The second energy level (n=2) can have a maximum number of 8 electrons, since it contains, one S- orbital which can hold two electrons, and a p-orbital which can accommodate six electrons.</u>
- <em><u>The third energy level (n=3) can have a maximum number of 18 electrons,</u></em> because it has <u><em>the S-orbitals which holds 2 electrons, the p-orbital which holds 6 electrons and the d-orbital which holds 10 electrons. </em></u>
Answer:
Explanation:
Calculate the pH of a hydrochloride acid solution, HCl, whose hydronium ion (H3O)+ concentration is 8.29 X 10-4 M.
Note: answer should have three significant figures
The symbolic notation for such isotope is

(it is an oxygen isotope)
I can’t tell if this is science or math