Rocket launch site would be the controlled variable
<span>Ionization energy (IE) is the amount of energy required to remove an electron.
If you observe the IEs sequentially, there is a large gap between the 2nd and 3rd. This suggests it is difficult to remove more than 2 two electrons. Elements that lose two electrons to become more stable are found in the Group 2A (2 representing the number of electrons in the outermost valence shell).</span>
Helium,neon,argon,krypton, and xenon
Your solution would be more CONCENTRATED because you added more solvent (detergent) to the solute (water). this increases the solvent to solute ratio making it more concentrated. in order to make it more dilute you would add more water