I am an unknown element located between Krypton and Argon. I am +1/2, +1/2, +1/2 in the p area when looking at my orbital configuration. I am a household item used to kill organisms. What am I?

Which of the following changes will decrease the total amount of gaseous solute able to be dissolved in a liter of liquid water? (2 points) decreasing temperature decreasing pressure decreasing surface area decreasing solute concentration